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| CONTACT US | SEARCH |
Examples:
| information retrieval will find 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' |
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