Text Search Advanced Help

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Use the text search engine to search documents in the web containing specific words or combinations of words. The text search engine will display a list of matching documents, with more current matches shown first. 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. A brief explanation of the query language is shown below, along with examples.

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 and not retrieval
finds documents containing 'information' but not 'retrieval'
(information and not retrieval) and WAIS
finds documents containing 'WAIS', plus 'information' but not 'retrieval'
web*
finds documents containing words starting with 'web'