Perhaps you should try some spelling variations:
"series estudioss urbano." » "serie estudios urbano.", "seis estudios urbano.", "serie estudio urbano.", "series estudios urbanos.", "series estudio urbano.", "serie estudioss urbano.", "seis estudioss urbano.", "tres estudioss urbano."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos."
"series espacio urbanismo." » "series spain urbanismo.", "versus espacio urbanismo.", "sociales 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: (("series estudioss urbano.") or ((("series estudios urbano.") or ("series espacio urbanismo."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("series estudioss urbano.") OR ((("series estudios urbano.") OR ("series espacio urbanismo.")))).
• Removing quotes may allow a broader search: (( series estudioss urbano. ) or ((( series estudios urbano. ) or ( series espacio urbanismo. )))).
• Adding a wildcard symbol may retrieve word variants: (("series estudioss urbano.") or ((("series estudios urbano.") or ("series espacio urbanismo."))))*.