The operator must be in all caps.Ī query on hotel OR lodging OR inn will retrieve results with any or all of these terms. Boolean logic is considered a well-known search strategy used in search engines and in databases it helps the user to narrow and broaden his search to get. To allow for either of several words to appear in your results, use the OR operator. The query cloning site: will only retrieve articles about cloning from the online version of the Wall Street Journal.Ī query on cloning will only retrieve results within the government domain. including formulating search strategies using Boolean operators. Use the site: feature to limit your results to a specific website or class of websites. The Boolean operators AND, OR, and NOT tell the the database how to group your search. Sites that refer to him as simply 'Barack Obama' may be overlooked. Use double quotations marks (" ") to search terms as an exact phrase.Ī query on " Barack Hussein Obama II" will retrieve only those sites that refer to Obama by his full name. Google automatically truncates search terms. To prevent this, use a + sign in front of each term.Ī query on child retrives results with "children" and "childcare". AND is used to join search terms when you want both terms to be present in a record, so it is used to combine the different concepts in your search. Use colorado statehood instead of when did colorado first become a state. Boolean Operators are the AND, OR and NOT operators, the logical operators from set theory. Keep queries descriptive, but use as few terms as possible. Results will typically include each word or punctuation mark included in the query. Search Strategiesīarack Obama and barack obama produce the same results. For more advanced searching tips, visit their Inside Search site.
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