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

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

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