Boolean Connectors – Use the connectors OR and AND to broaden or narrow your search.
Narrow Search: affordable health care act AND birth control
Expand Search: drugs OR pharmaceuticals
Nesting – Use parentheses and Boolean connectors to create sophisticated search strings.
(trade or export or import) AND multinational
Truncation – Use truncation symbol to look for multiple word endings (usually an asterisk *).
prescri* = prescription OR prescribed OR prescribe
