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