Perhaps you should try some spelling variations:
"serie estudios hispanic." » "serie estudios hispanicos.", "serie estudios hispano.", "serie studies hispanic.", "series estudioss hispanic.", "serie studias hispanic.", "serie estados hispanic."
"serie parias urbanos." » "serie parques urbanos.", "serie areas urbanas.", "serie rios urbanos.", "serie asia urbanos.", "serie guias urbanos.", "serie actas urbanos."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio urbano.", "series estudios 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 parias urbanos.") or ((("serie estudio urbano.") or ("serie estudios hispanic."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie parias urbanos.") OR ((("serie estudio urbano.") OR ("serie estudios hispanic.")))).
• Removing quotes may allow a broader search: (( serie parias urbanos. ) or ((( serie estudio urbano. ) or ( serie estudios hispanic. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie parias urbanos.") or ((("serie estudio urbano.") or ("serie estudios hispanic."))))*.