Perhaps you should try some spelling variations:
"series estudioss urbano." » "series estudios urbano.", "serie estudios urbano.", "seis estudios urbano.", "series estudiosss urbano.", "serie estudioss urbano.", "serie estudiosss urbano."
"series estudio urbano." » "series estudios urbano.", "serie estudio urbano.", "serie estudios urbano.", "series espacio urbano."
"tres estudios urbanos." » "otros estudios urbanos.", "los estudios urbanos.", "dos estudios urbanos."

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