Perhaps you should try some spelling variations:
instituir tecnologico » instituto tecnologico, instituto geologico
publicaciones peri » publicaciones de, publicaciones seriadas, publicaciones periodicas
peri instituir » para instituir
la mineria » la materia
y mineria » y miseria, de mineria, y miserias

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