Ocurrió un Error con la Base de Datos

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT titulo, url_noticia,noticia FROM noticias where id_noticia!='45'...' at line 1

SELECT titulo, url_noticia,noticia FROM noticias where match(titulo,noticia) against('Más camisetas Starcraft 2') and id_noticia!='45' limit 4 UNION SELECT titulo, url_noticia,noticia FROM noticias where id_noticia!='45' limit 1