Perhaps you should try some spelling variations:
"serie estudios peruanos." » "serie estudios urbanos.", "serie estudios americanos.", "serie estudios ensayos."
"series estudioss urbano." » "series estudios urbano.", "seis estudios urbano.", "serie estudio urbano.", "series estudios urbanos.", "series estudio urbano."
"serie estudios urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie estudios hispano."

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: (("serie estudios peruanos.") or ((("serie estudios urbano.") or ("series estudioss urbano."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie estudios peruanos.") OR ((("serie estudios urbano.") OR ("series estudioss urbano.")))).
• Removing quotes may allow a broader search: (( serie estudios peruanos. ) or ((( serie estudios urbano. ) or ( series estudioss urbano. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie estudios peruanos.") or ((("serie estudios urbano.") or ("series estudioss urbano."))))*.