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

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 urbanos.") or ("serie studia urbanos."))) or ("series estudios urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudios urbanos.") OR ("serie studia urbanos."))) OR ("series estudios urbano."))*.
• Removing quotes may allow a broader search: (((( series estudios urbanos. ) or ( serie studia urbanos. ))) or ( series estudios urbano. ))*.