Perhaps you should try some spelling variations:
"estudios humanisticos desde." » "estudios linguisticos desde.", "estudios humanisticos serie.", "estudios humanisticas de.", "estudios humanisticos en."
"estudios peruanos de." » "estudios urbanos de.", "estudios americanos de.", "estudios ensayos de.", "estudios peruano de.", "estudios peruana de.", "estudios peruanos y."
"estudio las series." » "estudio la series.", "estudiar las series.", "estudio a series.", "estudio las sedes.", "estudio las especies."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("estudios peruanos de.") or ("estudios humanisticos desde."))) or ("estudio las series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("estudios peruanos de.") OR ("estudios humanisticos desde."))) OR ("estudio las series.")).
• Removing quotes may allow a broader search: (((( estudios peruanos de. ) or ( estudios humanisticos desde. ))) or ( estudio las series. )).
• Adding a wildcard symbol may retrieve word variants: (((("estudios peruanos de.") or ("estudios humanisticos desde."))) or ("estudio las series."))*.