Perhaps you should try some spelling variations:
"series estudioss urbanos." » "series estudios urbanos.", "series estudio urbano.", "series espacios urbanos.", "seis estudios urbanos.", "serie estudio urbanos.", "serie estudos urbanos.", "seis estudioss urbanos.", "tres estudioss urbanos.", "leyes estudioss urbanos."
"serie estudios urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie estudios peruanos."
"series estudios urbano." » "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos.", "seis estudios urbano.", "tres estudios urbano.", "leyes estudios urbano."

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