Perhaps you should try some spelling variations:
publicaciones peridicas » publicaciones periodicas, publicaciones seriadas, publicacion periodica
instituto biologico » instituto geologico, instituto tecnologico, instituto diplomatico
instituto biblico » instituto publico, instituto biblioteca, institutos publicos
y mineria » y miseria, la mineria, de mineria

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "publicaciones peridicas ((instituto biologico) OR (instituto biblico)) y mineria de espana ;~".
• Adding a wildcard symbol may retrieve word variants: publicaciones peridicas ((instituto biologico) OR (instituto biblico)) y mineria de espana ;*.