14. The apparatus of claim 11 , wherein the at least one processor is further configured to: process a log of a search engine to obtain records related to previous search queries and click data; group the records to generate one or more sets of suggested search queries; and identify the clustered set of search queries based on at least one of a frequency, a click count, or a sponsored click count associated with the sets of suggested search queries.
15. The apparatus of claim 14 , wherein the at least one processor is further configured to process the obtained records to remove records related to restricted content.