Perhaps you should try some spelling variations:
"estudios humanos serie." » "estudios urbanos serie.", "estudios peruanos serie.", "estudios humanisticos serie.", "estudios humanas serie."
"estudios humanos desde." » "estudios urbanos desde.", "estudios peruanos desde.", "estudios humanisticos desde.", "estudios humanos de."
"estudios a serie." » "estudios e serie.", "estudios d serie.", "estudios _ serie.", "estudios la serie.", "estudios i serie.", "estudios 2 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 humanos desde."))) or ("estudios a serie."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("estudios humanos serie.") OR ("estudios humanos desde."))) OR ("estudios a serie."))*.
• Removing quotes may allow a broader search: (((( estudios humanos serie. ) or ( estudios humanos desde. ))) or ( estudios a serie. ))*.