Perhaps you should try some spelling variations:
"estudios humanas serie." » "estudios mas serie.", "estudios humanidades serie."
estudios humanos » estudios urbanos, estudios peruanos, estudios humanisticos
"Estudios humanos serie." » "Estudios urbanos serie."
"Estudios humanos desde." » "Estudios humanos de."

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 humanas serie."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("Estudios humanos serie.") OR ("Estudios humanos desde."))) OR ("estudios humanas serie."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"Estudios humanos serie.\") OR (\"Estudios humanos desde.\"))) or (\"estudios humanas serie.\"))*".
• Removing quotes may allow a broader search: (((( Estudios humanos serie. ) OR ( Estudios humanos desde. ))) or ( estudios humanas serie. ))*.