SELECT a.TituloAr, a.DescripcionAr, a.UrlAr, a.FechaPublicaAr, a.ImgAr, ta.TituloTipAr, ta.AliasTipAr, ra.TituloRegAr FROM Articulo a, TipoArticulo ta, RegionArticulo ra, MateriaContenido mc where  (a.TituloAr LIKE '%oposicić³n%' OR a.DescripcionAr LIKE '%oposicić³n%') AND a.EstadoPublicaAr = 1 AND a.FechaPublicaAr <= '2024-11-25 13:16:29' AND ta.IdTipAr = a.IdTipAr AND ra.IdRegAr = a.IdRegAr GROUP BY a.IdArIllegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8_unicode_ci,COERCIBLE) for operation 'like'