Perhaps you should try some spelling variations:
"serie estudios peruanoss." » "serie estudios peruanos.", "serie estudios urbanos.", "series estudioss peruanoss.", "serie studias peruanoss.", "serie estados peruanoss."
"series estudioss urbano." » "series estudios urbano.", "seis estudios urbano.", "serie estudos urbano.", "series estudios urbanos."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio urbano.", "series estudios urbano.", "serie studia urbano.", "serie estado 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 urbano.") or ("serie estudios peruanoss."))) or ("serie estudio urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudioss urbano.") OR ("serie estudios peruanoss."))) OR ("serie estudio urbano.")).
• Removing quotes may allow a broader search: (((( series estudioss urbano. ) or ( serie estudios peruanoss. ))) or ( serie estudio urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("series estudioss urbano.") or ("serie estudios peruanoss."))) or ("serie estudio urbano."))*.