1. A method for providing a third-party content provider with search queries that may be targeted by a given keyword, comprising: receiving, at a processor of a data processing system from a content provider computing device, a request to identify a plurality of search queries that match a keyword; determining, by the processor, a raw form of the keyword by arranging tokens corresponding to the keyword in alphabetical order and performing one or more of correcting misspelt words, replacing plural words with singular words, and replacing uppercase letters with lowercase letters; retrieving, by the processor, from a table corresponding to the raw form of the keyword, a plurality of potential search queries with which a content item was selected for display responsive to a bid for a keyword that corresponds to the raw form of the keyword; providing, by the processor to the content provider computing device, the plurality of potential search queries; and receiving, at the processor from the content provider computing device, a selection of a search query of the plurality of potential search queries and a bid associated with the search query.