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

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