Perhaps you should try some spelling variations:
"estudios humanisticas de." » "estudios humanisticos de.", "estudios mecanisticos de.", "estudios feministas de.", "estudios humanistica de.", "estudios humanistas de.", "estudios humanisticas en."
"estudios humanos desde." » "estudios urbanos desde.", "estudios peruanos desde.", "estudios humanisticos desde.", "estudios humanos de."
"estudios de serie." » "estudios de series.", "estudios de sergio.", "estudios ice serie."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("estudios humanos desde.") or ("estudios humanisticas de."))) or ("estudios de serie."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("estudios humanos desde.") OR ("estudios humanisticas de."))) OR ("estudios de serie.")).
• Removing quotes may allow a broader search: (((( estudios humanos desde. ) or ( estudios humanisticas de. ))) or ( estudios de serie. )).
• Adding a wildcard symbol may retrieve word variants: (((("estudios humanos desde.") or ("estudios humanisticas de."))) or ("estudios de serie."))*.