14. The one or more machine-readable storage devices of claim 13 , wherein the operations further comprise: identifying the one or more search queries based on the one or more search queries being received from a particular location.
13. One or more machine-readable storage devices for storing instructions that are executable by one or more processing devices to perform operations comprising: collecting data indicative of search terms associated with one or more search queries; identifying, in the search terms, a particular keyword; identifying remaining search terms as candidate keywords related to the particular keyword; and generating a confidence score for a candidate keyword, the confidence score comprising a ratio of (i) a number of times the candidate keyword and the particular keyword appeared in a same search query of the one or more search queries, to (ii) a number of times the candidate keyword appeared in the one or more search queries.