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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((publicaciones de) or (publicaciones peri)) instituto biologico de mineral y espana ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((publicaciones de) OR (publicaciones peri)) instituto biologico de mineral y espana ;.
• Adding a wildcard symbol may retrieve word variants: ((publicaciones de) or (publicaciones peri)) instituto biologico de mineral y espana ;*.