Perhaps you should try some spelling variations:
"series estudios urbanos." » "serie estudios urbanos.", "seis estudios urbanos.", "tres estudios urbanos.", "series estudios peruanoss.", "series estudios hispanos.", "series d'estudis urbanss."
"reales estudios urbano." » "reales estudio urbano.", "rurales estudios urbano.", "locales estudios urbano.", "reales estudios peruanos.", "reales estudios hispano.", "reales d'estudis urbans."
"ingles estudio urbano." » "inglesa estudio urbano.", "ingles 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: (((("ingles estudio urbano.") or ("series estudios urbanos."))) or ("reales estudios urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ingles estudio urbano.") OR ("series estudios urbanos."))) OR ("reales estudios urbano.")).
• Removing quotes may allow a broader search: (((( ingles estudio urbano. ) or ( series estudios urbanos. ))) or ( reales estudios urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("ingles estudio urbano.") or ("series estudios urbanos."))) or ("reales estudios urbano."))*.