Use the form below to search for documents in this web containing specific words or combinations of words. Each list item is a link to a matching document; if the document has a title it will be shown, otherwise only the document's file name is displayed.

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Query language options & examples Silica gels finds documents on "silica" or "gels" Silica OR gels similar as above Silica AND gels finds documents containing both terms (Silica AND gels) NOT aerogels finds documents containing silica and gels but not aerogels

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Query Language

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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