Perhaps you should try some spelling variations:
"biblioteca ensayos estudios juridicos ;" » "biblioteca amos estudios juridicos ;", "biblioteca ensayos estudios juridicas ;", "biblioteca ensayos estudios juridicass ;"
"biblioteca mario estatuto juridico ;" » "biblioteca calvino estatuto juridico ;", "biblioteca eduardo estatuto juridico ;", "biblioteca clarice estatuto juridico ;", "biblioteca america estatuto juridico ;", "biblioteca mario estatuto juridica ;", "biblioteca mario estatuto juridicas ;"

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: (("biblioteca ensayos estudios juridicos ;") or ("biblioteca mario estatuto juridico ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("biblioteca ensayos estudios juridicos ;") OR ("biblioteca mario estatuto juridico ;")).
• Removing quotes may allow a broader search: (( biblioteca ensayos estudios juridicos ; ) or ( biblioteca mario estatuto juridico ; )).
• Adding a wildcard symbol may retrieve word variants: (("biblioteca ensayos estudios juridicos ;") or ("biblioteca mario estatuto juridico ;"))*.