A method and system of retrieving information are disclosed. In accordance with the method, a plurality of information identifier (infoID) sets is generated based on at least one search term and at least one filtering criteria. The at least the plurality of infoID sets is joined according to a mathematical expression to form a resultant infoID set that includes at least one resultant infoID. At least a portion of a content document associated with the at least one resultant infoID is retrieved. At least one resultant infoID is summarized into at least one summary. The retrieved portion of the content document is summarized into the at least one summary of a combined result based on the associated at least one resultant infoID.