1. A method of establishing personalized limits on a search responsive to a key word query to an enterprise search system, including: receiving an object types access history for at least one particular user; wherein the object types access history includes records of object types selected by the particular user from search results returning multiple object types and records of object types selected by the particular user via interfaces other than search results; and determining and storing in computer readable memory a personalized scope of object types by analyzing frequencies of individual object type selections in the object types access history; wherein the personalized scope limits individual object types initially returned by an enterprise search system to object types that have frequencies above a pre-determined threshold in response to key word queries by the particular user that do not specify object types to search.