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.

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