GOOGLE BOOLEAN SEARCH OPERATORS NOT HOW TO

congressional or executive retrieves documents with either the word 'congressional' or 'executive' or both.congressional and hearing retrieves documents with both the word 'congressional' and 'hearing' anywhere inside the document.For example, entering and or AND will return the same results. Note: Boolean operators are not case sensitive. - Operator: The '-' operator is the same as the NOT operator and tells the search engine to exclude documents from a search if they contain the keywords.NOT: The NOT operator tells the search engine to exclude documents from a search if they contain the keywords.OR: The OR operator tells the search engine to return documents if they contain one or more keywords.

This operator narrows the search and returns fewer search results

AND: The AND operator tells the search engine to return only documents with all the keywords you entered.

Note: Since 'and' is in quotes, it is treated as a phrase instead of being treated as an operator.Ī Boolean search is a search that uses the logical (i.e., Boolean) operators (AND, OR, NOT, -) in addition to the keywords.

ways 'and' means retrieves Documents with the words 'ways', 'and', and 'means' anywhere in the document.

'ways and means' retrieves documents with the words 'ways', 'and', and 'means' in the specified order, right next to each other.

'congressional hearing' retrieves Documents with the word 'congressional' directly followed by the word 'hearing'.

Quotation marks tell the search engine to return documents if and only if they contain the exact phrase or string of words between quotes. The search engine will look for both words in the document and return those documents where both words can be found anywhere in the document.

To search for only those documents that contain both the words Bill and Clinton, you can enter Bill Clinton into the Search Box and click the Search button. It is recommended that parentheses be used around the proximity expression when creating complex queries. When proximity operators are used, the operator only applies to the word, or phrase in quotes, immediately before and after the operator.For example, title:(legislation environment). It is recommended that parentheses be used with field operators. When field operators are used, a space should not be placed between the operator and the word or phrase being searched.The '-' and '+' operators only apply to the word directly attached to the operator. When the '-' or '+' operators are used, a space should not be placed between the operator and the word entered.When Boolean operators are used, spaces between words are treated as an implied 'and' until another operator is used in the query.This primarily occurs with proper names.įor complex queries using operators, the following should be noted: Note: In certain cases, the search engine will automatically assume that two terms separated by a single space should be treated as a single phrase to increase the accuracy of results. In a simple query where operators are not used, spaces between words are treated as an implied 'and' so that the search results will contain documents containing all of the words that have been entered.

GOOGLE BOOLEAN SEARCH OPERATORS NOT HOW TO

The sections that follow will show you how to use a variety of characters and operators to narrow your search.Ī space is used to separate words or operators in a search query. In the list below, the precedence of the operators is from first to last. This is done through the use of operator precedence, which is a way of specifying which operators and expressions are evaluated first, second, and so on. Because queries can be very complex and can use several different operators, there needs to be a way to evaluate expressions unambiguously.

Google boolean search operators not