SELECT * FROM `db_193470_2`.`movies` WHERE (TRIM(VIDEOFORMAT) LIKE '' OR VIDEOFORMAT='0') AND (ORIGINALTITLE LIKE '%Chen Tang%' OR TRANSLATEDTITLE LIKE '%Chen Tang%' OR ACTORS LIKE '%Chen Tang%' OR DIRECTOR LIKE '%Chen Tang%' OR PRODUCER LIKE '%Chen Tang%') ORDER BY SOURCE DESC, NUM DESC  LIMIT -50,50<br />
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Invalid Query: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-50,50' at line 1