2. The method of claim 1 , wherein generating the plurality of candidate query rewrites further comprises concatenating the search query with each prior search query of the plurality of search queries.
2. The method of claim 1 , wherein generating the plurality of candidate query rewrites further comprises concatenating the search query with each prior search query of the plurality of search queries. 3. The method of claim 2 , wherein each prior search query includes a timestamp, and wherein scoring the candidate query rewrites includes weighting candidate rewrites based, in part, on the age of the corresponding prior query.