Perhaps you should try some spelling variations:
"series estudioss urbano." » "serie estudios urbano.", "seis estudios urbano.", "serie estudio urbano.", "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 estudio urbano.", "series estudios peruanos.", "series estudios hispano."
"series estudios urbanos." » "serie estudios urbanos.", "seis estudios urbanos.", "tres estudios urbanos.", "series estudio urbanos.", "series estudios peruanoss.", "series estudios hispanos."

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 estudios urbanos."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("series estudioss urbano.") OR ((("series estudios urbano.") OR ("series estudios urbanos.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"series estudioss urbano.\") or (((\"series estudios urbano.\") OR (\"series estudios urbanos.\"))))".
• Removing quotes may allow a broader search: (( series estudioss urbano. ) or ((( series estudios urbano. ) OR ( series estudios urbanos. )))).
• Adding a wildcard symbol may retrieve word variants: (("series estudioss urbano.") or ((("series estudios urbano.") OR ("series estudios urbanos."))))*.