Perhaps you should try some spelling variations:
"serie estudios peruanoss." » "serie estudios peruanos.", "serie estudios urbanos."
"Serie estudios hispanos." » "Serie estudios hispano.", "Serie estudios hispanicos.", "Serie estudios espanoles."
"serie estudios urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie 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: (((("serie estudios peruanoss.") or ("Serie estudios hispanos."))) or ("serie estudios urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie estudios peruanoss.") OR ("Serie estudios hispanos."))) OR ("serie estudios urbano."))*.
• Removing quotes may allow a broader search: (((( serie estudios peruanoss. ) or ( Serie estudios hispanos. ))) or ( serie estudios urbano. ))*.