SELECT DISTINCT b.id_bibliografia as id  FROM bib_bibliografia b LEFT JOIN bib_bibliografia_autores ba ON b.id_bibliografia=ba.id_bibliografia LEFT JOIN bib_autor a ON ba.id_autor=a.id_autor WHERE b.habilitado = 1 AND ( LOWER(b.titulo) LIKE '%hans, christian andersen%' OR LOWER(b.isbn) LIKE '%hans, christian andersen%' OR LOWER(a.nombre) LIKE '%hans, christian andersen%' OR LOWER(b.descripcion) LIKE '%hans, christian andersen%' OR LOWER(b.anio) LIKE '%hans, christian andersen%' OR LOWER(b.lugar_publicacion) LIKE '%hans, christian andersen%' OR LOWER(b.serie) LIKE '%hans, christian andersen%' OR LOWER(b.nota_contenido) LIKE '%hans, christian andersen%' OR LOWER(b.variante_titulo) LIKE '%hans, christian andersen%' OR LOWER(b.editorial) LIKE '%hans, christian andersen%' )