10. A computer-implemented system, comprising: an interface in communication with at least one processor to receive a title of an item being listed; a networked database configured to store a co-occurring terms table; and a processor and executable instructions accessible on a computer-readable medium that, when executed, cause the processor to perform operations comprising: generate a user interface for presentation on a user device, the user interface including perceptible user interface elements allowing a user to view title information; receive a title of an item being listed; determine a concept, the concept including two or more terms in the title of the item being listed; access, from the networked database, a plurality of co-occurring terms stored in a co-occurring terms table, each co-occurring term in the co-occurring terms table including a first set of words and a second word, the first set of words and the second word corresponding to terms that have occurred together in stored search queries and to terms that have occurred together in stored item information corresponding to title information of items previously listed for sale on an online marketplace, generate a matching of the concept with one or more co-occurring terms of the plurality of co-occurring terms, the matching being based on the concept matching the first set of words of the or more co-occurring terms; select at least one co-occurring term from the plurality of co-occurring terms based on the matching and based on a desirability score associated with the at least one co-occurring term; transmit instructions to cause display, on the user interface, of the at least one co-occurring term and the associated desirability score; generate a suggestion of a modification to the title of the item being listed, the modification modifying the title by adding to the concept or removing from the concept a second word of the selected at least one co-occurring term, the suggestion of the modification including presenting the concept in conjunction with the second word of the selected at least one co-occurring term; and transmit instructions to cause display, on the user interface, of the suggestion of the modification.
10. A computer-implemented system, comprising: an interface in communication with at least one processor to receive a title of an item being listed; a networked database configured to store a co-occurring terms table; and a processor and executable instructions accessible on a computer-readable medium that, when executed, cause the processor to perform operations comprising: generate a user interface for presentation on a user device, the user interface including perceptible user interface elements allowing a user to view title information; receive a title of an item being listed; determine a concept, the concept including two or more terms in the title of the item being listed; access, from the networked database, a plurality of co-occurring terms stored in a co-occurring terms table, each co-occurring term in the co-occurring terms table including a first set of words and a second word, the first set of words and the second word corresponding to terms that have occurred together in stored search queries and to terms that have occurred together in stored item information corresponding to title information of items previously listed for sale on an online marketplace, generate a matching of the concept with one or more co-occurring terms of the plurality of co-occurring terms, the matching being based on the concept matching the first set of words of the or more co-occurring terms; select at least one co-occurring term from the plurality of co-occurring terms based on the matching and based on a desirability score associated with the at least one co-occurring term; transmit instructions to cause display, on the user interface, of the at least one co-occurring term and the associated desirability score; generate a suggestion of a modification to the title of the item being listed, the modification modifying the title by adding to the concept or removing from the concept a second word of the selected at least one co-occurring term, the suggestion of the modification including presenting the concept in conjunction with the second word of the selected at least one co-occurring term; and transmit instructions to cause display, on the user interface, of the suggestion of the modification. 12. The system of claim 10 , further comprising: forming a group of co-occurring terms with first sets of words matching the term; and sort the group of the co-occurring terms according to their frequency of occurrence within at least one of the stored search queries.