def get_families_by_search(self, family_query=None, family_search=None):
pass<EOL>
Gets the search results matching the given search.

        arg:    family_query (osid.relationship.FamilyQuery): the family
                query
        arg:    family_search (osid.relationship.FamilySearch): the
                family search
        return: (osid.relationship.FamilySearchResults) - the search
                results
        raise:  NullArgument - ``family_query`` or ``family_search`` is
                ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        raise:  Unsupported - ``family_query`` or ``family_search`` is
                not of this service
        *compliance: mandatory -- This method must be implemented.*