Come here

SELECT * FROM gallery2 WHERE topic_id="306672" UNION SELECT * FROM gallery2 WHERE topic_id="1104296" UNION SELECT * FROM gallery2 WHERE topic_id="867812" UNION SELECT * FROM gallery2 WHERE topic_id="170090" UNION SELECT * FROM gallery2 WHERE topic_id="839244" UNION SELECT * FROM gallery2 WHERE topic_id="1630379" UNION SELECT * FROM gallery2 WHERE topic_id="71810" UNION SELECT * FROM gallery2 WHERE topic_id="1509617" UNION SELECT * FROM gallery2 WHERE topic_id="682129" UNION SELECT * FROM gallery2 WHERE topic_id="1134735" UNION SELECT * FROM gallery2 WHERE topic_id="1179100" UNION SELECT * FROM gallery2 WHERE topic_id="1257645" UNION SELECT * FROM gallery2 WHERE topic_id="628698" UNION SELECT * FROM gallery2 WHERE topic_id="169199" UNION SELECT * FROM gallery2 WHERE topic_id="957807" UNION SELECT * FROM gallery2 WHERE topic_id="1238168"