Perhaps you should try some spelling variations:
"serie desafio urbanismo." » "serie espacio urbanismo."
"serie estudios hispanos." » "serie estudios hispano.", "serie estudios hispanicos.", "serie estudios espanoles."
"serie estudios hispanic." » "serie estudios hispanicos.", "serie estudios hispano.", "serie studies hispanic."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie desafio urbanismo.") or ((("serie estudios hispanos.") or ("serie estudios hispanic."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie desafio urbanismo.") OR ((("serie estudios hispanos.") OR ("serie estudios hispanic."))))*.
• Removing quotes may allow a broader search: (( serie desafio urbanismo. ) or ((( serie estudios hispanos. ) or ( serie estudios hispanic. ))))*.