@abc.abstractmethod<EOL><INDENT>def get_compositions_by_search(self, composition_query, composition_search):<DEDENT>
return<EOL>
Gets the search results matching the given search query using the given search.

        :param composition_query: the composition query
        :type composition_query: ``osid.repository.CompositionQuery``
        :param composition_search: the composition search
        :type composition_search: ``osid.repository.CompositionSearch``
        :return: the composition search results
        :rtype: ``osid.repository.CompositionSearchResults``
        :raise: ``NullArgument`` -- ``composition_query`` or ``composition_search`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``composition_query`` or ``composition_search`` is not of this service

        *compliance: mandatory -- This method must be implemented.*