System, method, and computer program product to perform an operation to obfuscate search queries via broadened subqueries and recombining, by referencing an ontology to identify a set of generalized terms corresponding to at least one term of a received query, generating a plurality of subqueries based on the received query and the set of generalized terms, executing each of the plurality of subqueries to retrieve a result set for each respective subquery, and filtering the result sets using the received query to produce a result set responsive to the received query.