Illegal mix of collations (utf8_general_ci,IMPLICIT) and (cp1251_general_ci,COERCIBLE) for operation 'like' SQL query : SELECT COUNT(DISTINCT p.productID) FROM SS_products p where categoryID>1 and enabled=1 and ( LOWER(name) LIKE '%”›•™%' OR LOWER(product_code ) LIKE '%”›•™%' OR LOWER(brief_description) LIKE '%”›•™%' ) AND ( LOWER(name) LIKE '%”›%' OR LOWER(product_code ) LIKE '%”›%' OR LOWER(brief_description) LIKE '%”›%' ) AND ( LOWER(name) LIKE '%nokia%' OR LOWER(product_code ) LIKE '%nokia%' OR LOWER(brief_description) LIKE '%nokia%' ) AND ( LOWER(name) LIKE '%6700%' OR LOWER(product_code ) LIKE '%6700%' OR LOWER(brief_description) LIKE '%6700%' )