Perhaps you should try some spelling variations:
publicacion » publicacio (Expand Search), publicaciones (Expand Search)
publicacionesn » publicacioesn (Expand Search), publicacionesesn (Expand Search), publicaciones (Expand Search)
publicacioneses » publicacioeses (Expand Search), publicacioneseses (Expand Search), publicaciones (Expand Search)
publicacioesn » publicaciones (Expand Search), publicacio (Expand Search), publicacionesn (Expand Search), publicacion (Expand Search)
publicacioes » publicaciones (Expand Search), publicacio (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: ((publicacion OR (publicacionesn OR publicacioesn)) OR (publicacioneses OR publicacioes)) num. 6.