Based on the question title and (if available) the question category. See function qa_db_related_qs_selectspec() in qa-db-selects.php for the query.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.