Perhaps you should try some spelling variations:
instituto biologico » instituto geologico, instituto biblico, instituto tecnologico
publicacion del » publicacion de, publicaciones del, aplicacion del
biologico de » biologica de, biologia de
de mineral » del mineral, de minerales, _ mineral
mineral de » general de, mineria de, mineral y

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((publicacion del) OR (publicaciones de)) instituto biologico de mineral de espana ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((publicacion del) OR (publicaciones de)) instituto biologico de mineral de espana ;".
• Adding a wildcard symbol may retrieve word variants: ((publicacion del) OR (publicaciones de)) instituto biologico de mineral de espana ;*.