Perhaps you should try some spelling variations:
"series estudios hispanos." » "series estudios hispano.", "series estudios hispanicos.", "series estudios espanoles.", "seis estudios hispanos.", "tres estudios hispanos.", "leyes estudios hispanos."
"serie studias hispanos." » "serie estudios hispano.", "serie studies hispanic.", "serie estudios hispanicos.", "serie studia hispanos.", "serie guias hispanos.", "serie estudio hispanos."
"serie estudios urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie estudios peruanos."

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 estudios urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie studias hispanos.") OR ("series estudios hispanos."))) OR ("serie estudios urbano.")).
• Removing quotes may allow a broader search: (((( serie studias hispanos. ) or ( series estudios hispanos. ))) or ( serie estudios urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie studias hispanos.") or ("series estudios hispanos."))) or ("serie estudios urbano."))*.