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

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