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