Abstract: A computer implemented method for managing search queries. The method uses a number of processor units to receive data records. The number of processor units identify a set of data record pairs from the data records. The number of processor units generates a list of long data records based on frequencies of occurrences for long data records associated with each short data record in the set of data record pairs. The number of processor units receive a search query comprises a number of short data records in the set of data record pairs. The number of processor units identify a number of long data records for each short data record in the number of short data records using the lists of long data records for short data records. The number of processor units expand the search query by adding the number of long data records to the search query.