Perhaps you should try some spelling variations:
"serie estudio peruanoss." » "serie estudios peruanos.", "serie estado peruano.", "serie estudios peruanoss.", "serie studia peruanoss.", "serie estado peruanoss."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos."
"serie studias urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie studia urbano.", "serie estudios urbano.", "serie guias urbano."

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 peruanoss.") or ((("serie studias urbano.") or ("series estudios urbano."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie estudio peruanoss.") OR ((("serie studias urbano.") OR ("series estudios urbano."))))*.
• Removing quotes may allow a broader search: (( serie estudio peruanoss. ) or ((( serie studias urbano. ) or ( series estudios urbano. ))))*.