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