The database does not have subject headings.You are not sure of the correct subject heading.You are searching for a new trend or concept.The computer is looking for the exact word you typed, not for the meaning or context of the word.įor example, a search on AIDS will retrieve items on.Ī keyword search is the best method to use when: Some keyword search engines allow you to specify which field(s) are to be searched.Ī keyword search usually retrieves more items than a subject search, but they may not all be relevant. And in other databases, a keyword search will search everything in every record. In some databases, additional fields may be included in the keyword search. In most databases a keyword search finds words in fields that have descriptive content, such as author, article title, source title (book, journal, magazine, or newspaper, subject/descriptor terms, and abstract. A keyword search retrieves words or phrases from the important fields of the database records.
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