* As a special case, passing a length-zero string, (that is ""), will
* result in a query that returns all messages in the database.
*
- * See notmuch_query_set_sort for controlling the order of results and
- * notmuch_query_search to actually execute the query.
+ * See notmuch_query_set_sort for controlling the order of results.
+ * See notmuch_query_search_messages and notmuch_query_search_threads
+ * to actually execute the query.
*
* User should call notmuch_query_destroy when finished with this
* query.