Erro de contagem de registros: SELECT COUNT(*) FROM conteudo WHERE ( texto like '%sa�de%' or titulo like '%sa�de%' or resumo like '%sa�de%' or texto like '%de%' or titulo like '%de%' or resumo like '%de%' or texto like '%secret�rio%' or titulo like '%secret�rio%' or resumo like '%secret�rio%' or texto like '%nova;%' or titulo like '%nova;%' or resumo like '%nova;%' or texto like '%terra%' or titulo like '%terra%' or resumo like '%terra%' or texto like '%pesquisa;%' or titulo like '%pesquisa;%' or resumo like '%pesquisa;%' ) ORDER BY id DESC. Mysql informa: Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'