1. A system to process a data search request, the system including: a query controller module to receive, via an interface of a computer system, the data search request, the data search request including a plurality of constraints; a reduced constraint builder module to formulate, within the computer system, a plurality of search definitions, each search definition of a subset of the plurality of search definitions being formulated utilizing the plurality of constraint and to exclude at least one constraint; and a search engine to perform a plurality of searches of a data source to generate a plurality of search results and utilizing the plurality of search results to calculate, within the computer system, a plurality of counts of data items that respectively correspond to the subset of the plurality of search definitions, the query controller module to communicate, via the interface of the computer system, the plurality of counts of data items and the corresponding subset of the plurality of search definitions to a client machine.