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