Perhaps you should try some spelling variations:
"series estudios hispanos." » "series estudios hispano.", "series estudios hispanicos.", "series estudios espanoles.", "serie estudios hispanos.", "seis estudios hispanos.", "tres estudios hispanos."
"serie studias hispanos." » "serie estudios hispano.", "serie studies hispanic.", "serie estudios hispanicos.", "serie studia hispanos.", "serie estudios hispanos.", "serie guias hispanos."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio 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 studias hispanos.") OR ("series estudios hispanos."))) or ("serie estudio urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie studias hispanos.") OR ("series estudios hispanos."))) OR ("serie estudio urbano.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie studias hispanos.\") OR (\"series estudios hispanos.\"))) or (\"serie estudio urbano.\"))".
• Removing quotes may allow a broader search: (((( serie studias hispanos. ) OR ( series estudios hispanos. ))) or ( serie estudio urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie studias hispanos.") OR ("series estudios hispanos."))) or ("serie estudio urbano."))*.