A. Boolean Operators
OR is mORe (joins similar terms) e.g. cognitive OR brain
AND is less (joins dissimilar terms) e.g. memory AND music
Sample Search Using both AND and OR
metabolites OR hydrocarbons
AND
environment
B. Quotation Marks
Use quotation marks to search for a phrase
- "heavy metal"
- "water runoff"
- "isochron dating"
C. Truncation
Use a symbol, the asterisk * is the most common, to look for variant endings of a word
- environ* will search for environment, environments, environmental, etc.
- assess* will search for assess, assesses, assessment, etc.