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