Perhaps you should try some spelling variations:
institutos tecnologias » instituto tecnologico
publicaciones e » publicaciones de, publicaciones en, publicaciones y
tecnologias de » tecnologia de
e institutos » el instituto, los institutos, del instituto
minero de » mineria de, mineral de
minera de » mineria de, mineral de, minerales de

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

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