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# Case-Sensitive Exact Keyword Search

To find documents that contain case-sensitive exact matches of a keyword, enable the `AdvancedCaseSearch` setting before you index content into IDOL Server:

If you set `AdvancedCaseSearch` to `True` in the IDOL Server configuration file `[Server]` section before you index content, you can query for case-sensitive exact matches of keywords by prefixing the keyword with a tilde (~) and putting it in quotation marks when you perform the query.

For example, if you query IDOL Server with `"~Lovely"`, it does not stem the word, and finds only documents that contain Lovely.

If you put a word into quotation marks but do not prefix it with a tilde (~), IDOL Server matches it exactly but not case-sensitively (that is, the query `"Lovely"` matches documents that contain, for example, Lovely, lovely, lOveLy, and so on).

If you prefix a word with a tilde (~) and do not put it into quotation marks, IDOL Server matches it conceptually and case-sensitively (that is, the query `Lovely` matches documents that contain, for example, Lovely, Love, Loved, Loving, and so on).

For more information about case-sensitive searching, refer to IDOL Expert.

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