Only items in the purple area of the diagram will be retrieved. The searcher should be aware that important articles on media may be eliminated because they also mention newspapers. Application of Boolean Searching Techniques to Searching the Internet 1. Some search engines do not support Boolean searching. Always check the Help section to find out if the one you have chosen does.
Some search engines elect to use one of the operators as a default operator.
3.Some search engines will provide you with a template in which you may select the operator of your choice.