Perhaps you should try some spelling variations:
"series estudioss peruanos." » "series estudios peruanos.", "series estudios urbanos.", "serie estudios peruanos.", "seis estudios peruanos."
"series estudioss hispano." » "series estudios hispano.", "series estudios hispanicos.", "series espacios hispano.", "serie estudios hispano.", "seis estudios hispano."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio urbano.", "series estudios urbano.", "serie studia urbano."

Try widening your search to All Fields.

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

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