Perhaps you should try some spelling variations:
"series d'estudis urbans." » "serie estudios urbans.", "serie estudio urbans.", "serie estudos urbans.", "series estudios urbano."
"series estudios urbanos." » "serie estudios urbanos.", "seis estudios urbanos.", "tres estudios urbanos.", "serie estudioss urbanos.", "senales estudios urbanos."
"series estudio urbano." » "serie estudio urbano.", "serie estudios urbano.", "senales estudio urbano.", "series estudios urbano.", "series espacio urbano."

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 urbanos.") or ("series estudio urbano."))) or ("series d'estudis urbans."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudios urbanos.") OR ("series estudio urbano."))) OR ("series d'estudis urbans."))*.
• Removing quotes may allow a broader search: (((( series estudios urbanos. ) or ( series estudio urbano. ))) or ( series d'estudis urbans. ))*.