blog_objava.blog_id in (select blog_id from blog where blog.vezan_za_predmet and (blog.cis_oz_del,blog.cis_sif_del,blog.cis_sif_mat,blog.cis_oz_pred) in((23,5,1,9727),(23,6,1,9727),(23,5,1,9728),(23,6,1,9728),(9,1,1,10272)))