Search terms are words and/or quoted phrases. (Alpha-Numeric ONLY)
Examples of using phrases:
"how to address local security issues""Final Environmental Impact Report"
If you include the quototation marks your results page would list one and seven items respectively;
if you leave out the quotes your results pages would list 48 items for those phrases.
Examples of Boolean expressions:
cat and "bad dog"
animal not dog
cat or (animal not dog)
Note that the operator 'not' has the meaning of 'without'.
You can search for words starting with a prifix and '*' wild card,
e.g. Foot*.