Using AND/OR/NOT (Boolean Search Operators) |
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AND |
Use AND to focus search and combine different aspects of your topic. Example: global health and standards |
OR |
Use OR to expand your search and find synonyms/related terms. Example: emergency or disaster |
NOT |
Use NOT to exclude a word or phrase from your search Example: disaster mitigation not United States |
Additional Search Tips |
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Phrase search - Use quotation marks to search for a particular phrase. Example: "disaster mitigation" |
Truncation * - Use an asterisk to find variations of a word. Put an asterisk following the root of the word to find all variations of that word, including singular and plural. Example: resil* (finds resilience, resilient, etc.) |
(Grouping/Nesting Keywords) - Use parentheses ( ) as a way to group similar search terms together. Example: (CHEs or "complex humanitarian emergencies") and prevention |
See the Basic Search Tips guides for more information, including examples.