Using Search Connectors and Commands
Search connectors are the logic words used to help narrow a search, such as AND, OR, W/n, by defining relationships between your search terms. Search commands provide additional search options, such as ALLCAPS and ATLEAST, which allow you to get more precise results from your search. The following articles provide descriptions and examples for each connector and command.
For information about how multiple connectors work together, see How are Multiple Connectors Processed?
For information on how wildcard characters such as ! and * are used in a search, see Finding Variations of a Word.