Terrorism Prevention -- See Also the narrower term War on Terrorism, 2001-2009 Here are entered works on the events, metaphorically referred to as a "war," consisting of military operations, diplomatic activities, and other counterterrorist measures undertaken by the United States during the period from September 11, 2001 to the end of the administration of George W. Bush. Works on government antiterrorist measures and activities during earlier or later periods are entered under Terrorism--Prevention
Multiple words are searched together as one phrase.
Example : world health organization
Wildcards
Words may be right-hand truncated using an asterisk ('*') in place of other characters.
The '*' wildcard may also be embedded in a search string. You may use '?' to replace a single character anywhere within a word.
Examples : environment* polic*, wom?n
Boolean Operators
Use "and" or "or" to specify multiple words in any field, any order. Use "and not" to exclude words.
Example : stocks and bonds
Example : (alaska or canada) and (adventure and not vacation)
Field Limits
A field limit causes the system to search only the specified field for the specified word(s).
Grouping
Word search results are usually grouped by relevance to bring the most likely titles to the top of the list.
Each group represents a similar level of relevance and results are sorted within the group by date or title.
To get an ungrouped result set, use boolean operators to form a complex query.