Search with Boolean Operators

A Boolean Operator is a word that communicates search functions. AND, OR, and NOT are the Boolean operators used in searching databases to combine terms and search more efficiently.

AND = Results contain BOTH terms.
OR = Results contain EITHER term.
NOT = Results have the first term(s), but not the term following NOT.

Boolean operator

Search Strategies

Use the chart below to guide you in developing effective search expressions.

Search Strategies


Sample Searches for "Popular Topics"

Click a sample search link below to go to the search and results.
Try editing the search expression to match your topic.
Set required limits, such as peer reviewed and date restrictions.
Use the "Choose Databases" link to add or change databases to search.
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