Perhaps you should try some spelling variations:
instituto geologico » instituto tecnologico, instituto pedagogico
publicaciones peri » publicaciones de, publicaciones seriadas, publicaciones periodicas
peri instituto » para instituto, del instituto, el instituto
mineral de » general de
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 peri instituto geologico _ ((((mineral de) OR (mineral y))) or (mineria de)) espana ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: publicaciones peri instituto geologico _ ((((mineral de) OR (mineral y))) OR (mineria de)) espana ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "publicaciones peri instituto geologico _ ((((mineral de) OR (mineral y))) or (mineria de)) espana ;".
• Adding a wildcard symbol may retrieve word variants: publicaciones peri instituto geologico _ ((((mineral de) OR (mineral y))) or (mineria de)) espana ;*.