Perhaps you should try some spelling variations:
publicaciones peri » publicaciones de, publicaciones seriadas, publicaciones periodicas
instituto ecologia » instituto tecnologico, instituto geologico, instituto colombiano
peri instituto » para instituto, del instituto, el instituto
ecologia de » psicologia de
de mineria » de materia, la mineria

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 ecologia de mineria de espana ;~.
• Adding a wildcard symbol may retrieve word variants: publicaciones peri instituto ecologia de mineria de espana ;*.