@abc.abstractmethod<EOL><INDENT>def get_comments_by_search(self, comment_query, comment_search):<DEDENT>
return<EOL>
Gets the search results matching the given search.

        :param comment_query: the comment query
        :type comment_query: ``osid.commenting.CommentQuery``
        :param comment_search: the comment search
        :type comment_search: ``osid.commenting.CommentSearch``
        :return: the search results
        :rtype: ``osid.commenting.CommentSearchResults``
        :raise: ``NullArgument`` -- ``comment_query`` or ``comment_search`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``comment_query`` or ``comment_search`` is not of this service

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