03 · What You Need to Know
Non-indexed does not mean nonexistent, inaccessible, or necessarily low quality
First, be precise about what “not indexed” means
A journal or article can be absent from one database and present in another. “Not indexed internationally” therefore needs a reference point. A journal may not be covered by Scopus or Web of Science but may appear in a regional index, a national database, the Directory of Open Access Journals (DOAJ), Google Scholar, OpenAlex, a disciplinary database, or its own publishing platform.
Likewise, an article may be discoverable through a repository even when the journal itself has limited database visibility.
Not indexed in a particular database
The source or record is absent from the database you checked. This is a statement about that database's coverage.
Not discoverable anywhere
A much stronger claim that should not be inferred simply because a record did not appear in one or two international databases.
Start by identifying local journals rather than searching only for articles
If keyword searching is not exposing the local literature, change the unit of search. Instead of asking only “Which articles mention my topic?”, ask “Which journals in this country or region publish research in this field?”
Once you identify plausible journals, search or browse them directly. Examine current and archived issues, use the journal's own search function if it has one, and test broader terminology than you used in international databases.
DOAJ can help identify open-access journals from many countries and languages. Its directory includes journals from well over one hundred countries and supports searching journals and article records. Inclusion in DOAJ is not equivalent to inclusion in every other bibliographic database, so it can expose publication venues that may not appear in the international index you started with.
Look for national and regional indexing systems
International bibliographic databases are only one layer of scholarly infrastructure. Depending on the country and discipline, national libraries, government agencies, universities, scholarly societies, or regional organizations may maintain journal portals, citation indexes, bibliographies, or research databases.
Search for these explicitly. Queries combining the country or region with terms such as “journal index,” “research database,” “citation index,” “academic journals,” “research repository,” or the disciplinary equivalent can reveal infrastructure you may not encounter through a topical database search.
Verify what each service actually covers. A journal directory, citation index, repository aggregator, and full-text platform are not interchangeable, even when all of them provide a search box.
Search institutional repositories directly
Universities and research institutions often maintain repositories containing faculty publications, theses, dissertations, conference papers, technical reports, working papers, and other scholarly outputs. Some repository records represent copies of conventionally published articles. Others may be the only readily accessible record of a local research output.
OpenDOAR provides a global directory of open-access repositories and can help identify repositories associated with a country or institution. OpenAlex also incorporates records from institutional and subject repositories into its scholarly graph, although repository coverage and matching depend on available metadata.
Repository aggregation can therefore be useful, but do not assume an aggregator mirrors every record held by the repository itself. OpenAlex explicitly notes that repository records and the works represented in its system are not necessarily one-to-one, and records with limited metadata can be harder to match.
When the local literature is especially important to your question, search promising repositories directly rather than relying solely on an aggregator.
Search institutions, not just geographic names
A local study may never include the name of the city, province, or region in its title or keywords. The location may be visible only through the authors' affiliations, study site, participating institution, or full text.
Identify universities, hospitals, schools, research centers, laboratories, government units, nongovernmental organizations, and professional associations that plausibly conduct research on the topic. Search combinations of the topic with those institutional names.
This approach can be particularly productive once you find one relevant study. Its affiliations tell you where at least some of the research activity is occurring.
Turn relevant authors into search routes
Researchers often publish several papers within a related programme of work. If you find one locally relevant article, thesis, report, or conference paper, search the authors individually.
Look at institutional profiles, ORCID records when available, scholarly search systems, repository profiles, and publication lists. Coauthors can reveal additional research groups and institutions. An obscure paper can suddenly become a rather useful breadcrumb. Literature searching occasionally rewards detective work more than Boolean elegance.
Use citation searching to move around weak indexing
Keyword searching depends heavily on metadata. Citation relationships provide another route.
Check the references of locally relevant studies for earlier local work. Then use services that support cited-by searching to identify later research that cites those records. Cochrane recommends checking reference lists of included studies and relevant systematic reviews as part of comprehensive evidence searching.
Citation chasing is especially valuable when local terminology has changed over time or when titles and abstracts do not contain the geographic terms you expected.
Search exact titles when you discover a citation without a copy
You may encounter a promising local study in another paper's reference list but fail to retrieve it through your normal databases. Search the exact title in quotation marks, then try the author surname plus distinctive title words.
Search the author's institution, the journal website, repositories, and broader scholarly discovery services. OpenAlex, for example, supports title searching when a persistent identifier such as a DOI is unavailable.
Be careful with metadata. Local publications can have inconsistent title capitalization, abbreviated journal names, incomplete author information, or typographical differences between citing documents. If an exact-title search fails, progressively shorten the title to its most distinctive terms.
Do not forget local-language terminology
A search conducted entirely in English may miss studies whose titles, abstracts, keywords, repository metadata, or full texts use another language. This is particularly relevant for locally oriented research in education, public administration, agriculture, culture, social science, community health, and other fields where local terminology may be integral to the topic.
Identify local equivalents of the main concepts and search them independently as well as in combination with English terms. When terminology varies substantially, inspect how known relevant local documents describe the phenomenon and reuse those terms.
Use web search strategically, not as an undocumented last resort
General web search can locate journal pages, institutional PDFs, repository records, research-center publications, and documents that are difficult to discover elsewhere. It can also produce unstable and personalized result sets, so it should be used deliberately.
Try targeted queries using quotation marks and domain restrictions. Searching a distinctive phrase with an institutional domain can be more productive than entering a long database-style Boolean string.
If web searching contributes evidence to a formal review, record the search engine, date, query, and how far into the results you screened. The goal is not to pretend that a web search is perfectly reproducible, but to make your procedure inspectable.
Searching widely does not mean including everything you find
Retrieval and appraisal are different stages. Expanding your search to local journals and repositories is intended to reduce the chance that relevant evidence is overlooked. It does not lower your eligibility or quality standards.
A locally published study still needs to satisfy whatever inclusion criteria your research requires. Its methods, reporting, relevance, and limitations should be evaluated on their merits. If reporting is incomplete, the challenge becomes how much confidence the available information actually permits.
Watch Out
Do not treat “not indexed in Scopus” or “not indexed in Web of Science” as a synonym for “not scholarly,” “predatory,” or “poor quality.” Database coverage and research quality are different questions. Evaluate the publication and the study using appropriate evidence rather than converting indexing status into a quality verdict.
