Perhaps you should try some spelling variations:
"estudios humanisticos de." » "estudios linguisticos de.", "estudios humanisticas de.", "estudios humanistica de.", "estudios humanisticos y."
"estudios humanos serie." » "estudios urbanos serie.", "estudios peruanos serie.", "estudios ensayos serie.", "estudios humanas serie.", "estudios humanos desde."
"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 serie.") or ("estudios humanisticos de."))) or ("estudios de serie."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("estudios humanos serie.") OR ("estudios humanisticos de."))) OR ("estudios de serie.")).
• Removing quotes may allow a broader search: (((( estudios humanos serie. ) or ( estudios humanisticos de. ))) or ( estudios de serie. )).
• Adding a wildcard symbol may retrieve word variants: (((("estudios humanos serie.") or ("estudios humanisticos de."))) or ("estudios de serie."))*.