Perhaps you should try some spelling variations:
"series estudios hispanos." » "series estudios hispanicos.", "series estudios espanoles.", "series estudios lesbianos.", "seis estudios hispanos.", "tres estudios hispanos.", "leyes estudios hispanos."
"series estudios hispano." » "seis estudios hispano.", "tres estudios hispano.", "leyes estudios hispano."
"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: (((("series estudios hispanos.") or ("series estudios hispano."))) or ("serie estudios urbanos."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudios hispanos.") OR ("series estudios hispano."))) OR ("serie estudios urbanos.")).
• Removing quotes may allow a broader search: (((( series estudios hispanos. ) or ( series estudios hispano. ))) or ( serie estudios urbanos. )).
• Adding a wildcard symbol may retrieve word variants: (((("series estudios hispanos.") or ("series estudios hispano."))) or ("serie estudios urbanos."))*.