Boolean: And, Or, Not
And – narrows
OR – expands – synonyms
Not - eliminates
“Phrase Searching”
Refining: Expanding/Narrowing/Clarifying
Dates
peer reviewed or scholarly
other words
subject terms
format
Wildcard ne?t neat, next, nest
Wildcard col#r color, colour
Truncation sampl* sample, sampling
Relevance, dates