A snack you should try

SELECT * FROM gallery2 WHERE topic_id="1443323" UNION SELECT * FROM gallery2 WHERE topic_id="543366" UNION SELECT * FROM gallery2 WHERE topic_id="1509901" UNION SELECT * FROM gallery2 WHERE topic_id="1792539" UNION SELECT * FROM gallery2 WHERE topic_id="1785498" UNION SELECT * FROM gallery2 WHERE topic_id="1661927" UNION SELECT * FROM gallery2 WHERE topic_id="292595" UNION SELECT * FROM gallery2 WHERE topic_id="526133" UNION SELECT * FROM gallery2 WHERE topic_id="1747132" UNION SELECT * FROM gallery2 WHERE topic_id="1093839" UNION SELECT * FROM gallery2 WHERE topic_id="100196" UNION SELECT * FROM gallery2 WHERE topic_id="620657" UNION SELECT * FROM gallery2 WHERE topic_id="182335" UNION SELECT * FROM gallery2 WHERE topic_id="1747361" UNION SELECT * FROM gallery2 WHERE topic_id="864181" UNION SELECT * FROM gallery2 WHERE topic_id="851007"