Perhaps you should try some spelling variations:
"serie estudios hispanic." » "serie estudios hispanicos.", "serie estudios hispano.", "serie estudios historico."
"serie studies hispanic." » "serie estudios hispanicos.", "serie estudios hispano.", "serie studies spain.", "serie studia hispanic.", "series estudios hispanic.", "media studies hispanic."
"serie espacio urbano." » "serie espacio urbanismo.", "serie desafio urbano.", "serie estado urbano.", "serie estudio urbano."

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

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