AND narrows search
copyright act AND fair use 
OR broadens search
copyright act OR fair use OR Teach Act 
Grouping terms with Connectors
Sophisticated users of Connectors (Boolean Operators) may combine multiple terms and Connectors by the strategic use of parentheses to GROUP terms.
fair use AND (higher education OR colleges OR universities) 
Truncation symbols vary by database. However, most use the asterisk *. For complete information about using truncation or wildcards in a particular database, click on Help in that database and find Truncation or Wildcards.
Examples:
EBSCOhost - Academic Search Complete, Catholic Periodical and Literature Index, CINAHL Plus with Full Text, ERIC, Education Source, Social Works Abstracts, and more
* for single or multiple letters
budget* yields
budget
budgets
budgeted
budgeting
Lexis Nexis Academic
! for multiple letters
copyright! yields
copyrights
copyrightable
copyrighted
copyrighting
* for one letter - may be used multiple times
psych****ist yields
psychologist
psychiatrist
Ovid - PsycINFO, MEDLINE, LWW Total Access Collection, and Journals @ Ovid.
$ or * at end of word for 1 or more letters
health$ yields
health
healthy
healthful
*n (where n is some number) at end of word - computer*7 yields computerization
# inside of word replaces 1 letter - wom#n yields woman along with women
