Perhaps you should try some spelling variations:
"estudios peruanos desde." » "estudios urbanos desde.", "estudios americanos desde.", "estudios ensayos desde.", "estudios peruanos de.", "estudios peruanos del.", "estudios peruanos jose."
"estudios maior serie." » "estudios marcial serie.", "estudios nativos serie.", "estudios maior series.", "estudios mayo serie.", "estudios minor serie."
"estudios mas serie." » "estudios a serie.", "estudios de serie.", "estudios en serie.", "estudios mazas serie.", "estudios las series.", "estudios mayo serie."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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