12. A hardware computer-readable storage media having instructions stored thereon that, when executed by a computing device, cause the computing device to perform acts comprising: obtaining an input search query from a user, the input search query comprising an input search term; identifying instances where other users have used the input search term as an initial search query and added additional search terms to the initial search query to obtain refined search queries, wherein the initial search query and the refined search queries were previously entered by the other users; organizing the refined search queries that were previously entered by the other users into at least multiple first refined search queries that were entered by first other users and that are associated with a first topic and multiple second refined search queries that were entered by second other users and that are associated with a second topic; estimating a first relative likelihood that an intent of the user matches the first topic; estimating a second relative likelihood that the intent of the user matches the second topic, the first relative likelihood being greater than the second relative likelihood; and causing the multiple first refined search queries that were previously entered by the first other users to be displayed on a graphical user interface (GUI) concurrently with the multiple second refined search queries that were previously entered by the second other users, the displayed GUI indicating that the first relative likelihood that the intent of the user matches the first topic is greater than the second relative likelihood that the intent of the user matches the second topic.
12. A hardware computer-readable storage media having instructions stored thereon that, when executed by a computing device, cause the computing device to perform acts comprising: obtaining an input search query from a user, the input search query comprising an input search term; identifying instances where other users have used the input search term as an initial search query and added additional search terms to the initial search query to obtain refined search queries, wherein the initial search query and the refined search queries were previously entered by the other users; organizing the refined search queries that were previously entered by the other users into at least multiple first refined search queries that were entered by first other users and that are associated with a first topic and multiple second refined search queries that were entered by second other users and that are associated with a second topic; estimating a first relative likelihood that an intent of the user matches the first topic; estimating a second relative likelihood that the intent of the user matches the second topic, the first relative likelihood being greater than the second relative likelihood; and causing the multiple first refined search queries that were previously entered by the first other users to be displayed on a graphical user interface (GUI) concurrently with the multiple second refined search queries that were previously entered by the second other users, the displayed GUI indicating that the first relative likelihood that the intent of the user matches the first topic is greater than the second relative likelihood that the intent of the user matches the second topic. 20. The hardware computer-readable storage media of claim 12 , wherein organizing the refined search queries comprises: comparing the refined search queries to a first definition for the input search term to identify the multiple first refined search queries; and comparing the refined search queries to a second definition for the input search term to identify the multiple second refined search queries.