12. The non-transitory computer readable storage medium of claim 11 , wherein determining the prefixes, infixes and postfixes comprises forming a plurality of query term triples for the particular unique query, where each triple contains different term groupings of a prefix, a non-empty infix, and a postfix of terms in the particular unique query.
12. The non-transitory computer readable storage medium of claim 11 , wherein determining the prefixes, infixes and postfixes comprises forming a plurality of query term triples for the particular unique query, where each triple contains different term groupings of a prefix, a non-empty infix, and a postfix of terms in the particular unique query. 13. The non-transitory computer readable storage medium of claim 12 , wherein identifying the plurality of groups of queries comprises identifying multiple groups that include the particular unique query.