Boolean Search Tips

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Query Language - Boolean Searches
The text search engine allows queries to be formed from arbitrary Boolean expressions containing the keywords AND, OR, and NOT, and grouped with parentheses. For example:
information retrieval-
finds documents containing 'information' or 'retrieval'
information or retrieval-
same as above
information and retrieval-
finds documents containing both 'information' and 'retrieval'
information not retrieval-
finds documents containing 'information' but not 'retrieval'
(information not retrieval) and WAIS-
finds documents containing 'WAIS', plus 'information' but not 'retrieval'
web* -
finds documents containing words starting with 'web'

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