4. Searching by keyword

Keyword searching uses natural or everyday language to look for the occurrence of a word or phrase in a database, online catalog, or webpage. They are the words found in the title of a book or in the text of an article. They are not the terms that have been assigned by an indexer.

The keywords in your search should be the concepts and similar terms identified from your research question.

Avoid using unnecessary words like what, effects, impact, the, of, that, on, to, etc.