![]() ![]() In addition to these operators, Google distinguishes between some symbols like ~, +, *,”” The OR operator is used to include in the result of a query a keyword or another keyword but not both, and is equivalent to the use of “|”, eg “reverse OR engineering” means to Google exactly “reverse|engineering” (try it then try “reverse engineering” to see the difference).The NOT operator is extremely useful and can be used to eliminate some keywords from the result of a query, this operator is equivalent to the sign “-” (less) used within a keyword, to figure out the meaning try searching for “email service” and “email service -marketing” (please note that there is no space between “-” and “marketing”).The AND operator is used to include more than one keyword in a single research query and can be replaced by a single space ” ” even if the results differ slightly between both, as you can see by looking for example for “reverse AND engineering AND tutorials “and” reverse engineering tutorials”.Google can understand three logical operators: AND, NOT and OR, so Google recognizes the “OR” as the operator and “Or”, “oR” or “or” as search elements or keywords. You have to know that queries on Google are not case sensitive, thus there is no difference between lower or upper cases or even a combination of both: Security, SECURITY and SeCuriTY will return exactly the same result, but this rule has an exception when using logical operators. ![]()
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