Marks words that cannot appear in any Web page on the results list. (minus sign - no space before first letter) + Elvis Presley: This will require that Elvis appears, but Presley will be a request.Ħ.
#GOOGLE BOOLEAN SEARCH NOT PLUS#
If there is no plus sign, the word can be considered a request, not a requirement (particularly if there is a string of words) Use it to mark words that must appear in each Web page. + (plus sign - no space before first letter) For some engines, it must be used with AND or OR. Is used much like the minus sign to exclude words. This is a good way to connect synonyms or alternate spellings. (Notice that the quotation marks are also used below Boolean Search commands can be used together to maximize their effectiveness.)Ĭonnects two or more words, at least one of which should appear on each Web page returned by the query. Most (but not all) search sites assume this operator by default. In contrast, the query, China Cat Sunflower (without quotes) might return pages containing the words China, cat, and sunflower not necessarily in that order.Ĭonnects two or more search terms all of which must appear on each web page on the results list. "China Cat Sunflower" will return a list of Web pages containing that exact phrase. Without quotation marks, the search engine may assume that the phrase is a list of separate query terms. Boolean logic commands are accepted by most search engines and searchable data bases to help the researcher search more efficiently.
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