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 urbanos." » "serie estudios 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 estudios urbanos."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie studias hispanos.") OR ("series estudios hispanos."))) OR ("serie estudios urbanos.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie studias hispanos.\") OR (\"series estudios hispanos.\"))) or (\"serie estudios urbanos.\"))".
• Removing quotes may allow a broader search: (((( serie studias hispanos. ) OR ( series estudios hispanos. ))) or ( serie estudios urbanos. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie studias hispanos.") OR ("series estudios hispanos."))) or ("serie estudios urbanos."))*.