Ups... the query (select concat("{\"id\": \"",id,"\", \"title\": \"",title,"\", \"table\": \"tkm_news\"}") as info from (SELECT id, title FROM tkm_news where (is_active = 1) and (tkm_news.title like "%Toru��%" or tkm_news.introduction like "%Toru��%" or tkm_news.content like "%Toru��%" or tkm_news.tags like "%Toru��%")) as a) limit 0, 120 caused some trouble... Illegal mix of collations (latin2_general_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'