Use Boolean operators and nesting to search for combinations of words or phrases. Enter Boolean operators (i.e., AND, OR, NOT) in either uppercase or lowercase.
Note: Boolean operators and nesting may be used in Free Search types
|Concept||Search Examples||Retrieval Formula|
|AND||rodgers AND hammerstein
children AND poverty
"civil war" AND virginia
Retrieves only records
containing both terms.
|OR||sixties OR 60s OR 1960s
labor OR labour
email OR e-mail OR "electronic mail"
Retrieves records containing
either one or more terms.
|AND NOT||caribbean AND NOT cuba
jockey AND NOT disc
"civil war" AND NOT american
Excludes records containing
the second term.
|NESTING||fruit AND (banana OR apple)
(women OR woman) AND basketball
((color OR colour) AND (decorate OR decoration)) AND NOT (art OR architecture)
|Use parentheses ( ) to group portions of boolean queries for more complex searches.|