Reference Desk 610.902.8537
No Operator | Searches words together as a phrase in the exact order in which you have typed them. |
AND | Retrieves records containing both or all of the search terms joined by AND; the middle sliver of a Venn Diagram. |
OR | Retrieves records containing either or any of the search terms joined by OR; everything included in a Venn Diagram |
NOT | Retrieves records that do not contain a specific term. |
( ) |
Groups words together so that you can relate phrases by operators or layer your operators. For example: (feminist or feminism) AND (literary (theory or criticism)) Just like high school algebra, parentheses must be in pairs, and the inner-most pair is worked first. |
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