Perhaps you should try some spelling variations:
"series estudioss peruanos." » "series estudios peruanos.", "serie estudios peruanos.", "seis estudios peruanos."
"serie estudio urbanos." » "serie estudio urbano.", "serie estudios urbano.", "serie estudios peruanos.", "serie estudios urbanos.", "series estudios urbanos.", "serie studia urbanos."
"tres estudios urbanos." » "otros estudios urbanos.", "los estudios urbanos.", "dos estudios urbanos."

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

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