| Search Examples You can build expressions containing the keywords AND,
OR, and NOT, and or group words 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 web
finds documents containing 'web', plus 'information' but not 'retrieval'
web*
finds documents containing words starting with 'web'
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