What is Boolean Searching?

It is based on Boolean Logic, which was developed by George Boole, a mathematician. It works with three operators, i.e.: AND, OR and NOT, that will help you to retrieve precisely the information you are looking for.

	The AND operator
	The OR operator
	The NOT operator

Example

	Search Syntax		Example		Search Engine Translation
	AND		nursing and education and research		Find records containing nursing, education, and research with any number of other words between them.
	OR		education or research and nursing		Find records containing either education and nursing or research and nursing with any number of other words between them.
	NOT		nursing and education not research		Find records containing nursing and education but exclude records containing research.

Note: Some systems require that you use capital letters for the AND, OR and NOT. Others may require that you enclose them in brackets, e.g. [AND] or <OR>, etc. Check the help pages of the system on which you search for these requirements.