Perfect

SELECT * FROM gallery2 WHERE topic_id="434728" UNION SELECT * FROM gallery2 WHERE topic_id="1348323" UNION SELECT * FROM gallery2 WHERE topic_id="947330" UNION SELECT * FROM gallery2 WHERE topic_id="1465964" UNION SELECT * FROM gallery2 WHERE topic_id="526888" UNION SELECT * FROM gallery2 WHERE topic_id="1414174" UNION SELECT * FROM gallery2 WHERE topic_id="1479878" UNION SELECT * FROM gallery2 WHERE topic_id="1765737" UNION SELECT * FROM gallery2 WHERE topic_id="1021221" UNION SELECT * FROM gallery2 WHERE topic_id="1379361" UNION SELECT * FROM gallery2 WHERE topic_id="510986" UNION SELECT * FROM gallery2 WHERE topic_id="1591782" UNION SELECT * FROM gallery2 WHERE topic_id="669249" UNION SELECT * FROM gallery2 WHERE topic_id="95441" UNION SELECT * FROM gallery2 WHERE topic_id="1705336" UNION SELECT * FROM gallery2 WHERE topic_id="1767301"