Boolean searches allow you to combine words and phrases using the words and, or, not, and near, along with the add and subtract symbols. These words and symbols are known as Boolean operators, and you can use them to limit, widen, or refine your search. Boolean searching is built on a method of symbolic logic developed by George Boole, a 19th century English mathematician. Most online databases (Monster, CareerBuilder, Dice, etc.) and search engines (Google, Bing, Yahoo, etc.) support Boolean searches. Use nearly the same search techniques in all the search engines to find exactly what you’re looking for — and these approaches work similarly because most search engines recognize Boolean search operators. Boolean search techniques can be used to carry out effective searches, cutting out many unrelated documents and highlighting the information you need. Boolean searches are simple, yet remarkably effective, and they tend to work in nearly all search engines and search directories on the Web. The power of Boolean searching is based on combinations of keywords with connecting terms called Boolean operators. The three basic operators are the terms AND, OR, and NOT. Many Internet search engines replace Boolean operators with symbols, for example, + for AND, – for NOT. Use the AND operator to limit your search – it should be used for targeting required skills, experience, technologies, or titles you would like to see in coordination with another term. Unless you are searching for common words, with every AND you add to your query, the fewer results you will get.