Perhaps you should try some spelling variations:
"serie estudos urbans." » "serie estudios urbanos.", "serie estudios urbano.", "serie d'estudis urbans.", "serie estudios urbans.", "series estudios urbans.", "serie estado urbans."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio urbano.", "series estudios urbano.", "serie studia urbano."
"case studies spain." » "case estudies spain.", "case students spain.", "case soldiers spain.", "caso studies spain.", "base studies spain.", "casa studies spain."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie estudos urbans.") or ("serie estudio urbano."))) or ("case studies spain."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie estudos urbans.") OR ("serie estudio urbano."))) OR ("case studies spain."))*.
• Removing quotes may allow a broader search: (((( serie estudos urbans. ) or ( serie estudio urbano. ))) or ( case studies spain. ))*.