Perhaps you should try some spelling variations:
"estudios humanos desde." » "estudios urbanos desde.", "estudios peruanos desde.", "estudios humanisticos desde.", "estudios humanos de."
"estudios maior serie." » "estudios marcial serie.", "estudios nativos serie.", "estudios maior series.", "estudios minor serie.", "estudios mentor serie."
"estudios mayo serie." » "estudios mas serie.", "estudios enzo serie.", "estudios a 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 maior serie.") or ("estudios humanos desde."))) or ("estudios mayo serie."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("estudios maior serie.") OR ("estudios humanos desde."))) OR ("estudios mayo serie."))*.
• Removing quotes may allow a broader search: (((( estudios maior serie. ) or ( estudios humanos desde. ))) or ( estudios mayo serie. ))*.