Erro de contagem de registros: SELECT COUNT(*) FROM conteudo WHERE ( texto like '%Tr�fico%' or titulo like '%Tr�fico%' or resumo like '%Tr�fico%' or texto like '%ao%' or titulo like '%ao%' or resumo like '%ao%' or texto like '%Combate%' or titulo like '%Combate%' or resumo like '%Combate%' ) ORDER BY id DESC. Mysql informa: Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'