Perhaps you should try some spelling variations:
"series estudioss urbanos." » "series estudios urbanos.", "series estudios urbano.", "series espacios urbanos.", "serie estudios urbanos.", "seis estudios urbanos."
"series espacio urbano." » "series spain urbano.", "versus espacio urbano.", "sociales espacio urbano.", "series espacio urbanismo."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "series estudios urbano.", "serie studia urbano."

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