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."
"seis estudioss urbano." » "seis estudios urbanos.", "seis estudio urbano.", "seis estudios urbano.", "mis estudios urbano.", "seire estudios urbano."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos."

You may be able to get more results by adjusting your search query.

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