Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura en de isaac.", "literatura del de isaac.", "literatura e de isaac."
"literatura de ex islam." » "literatura de el islam.", "literatura de e islam.", "literatura de del islam.", "literatura de ee islam.", "literatura de e_ islam.", "literatura de eel islam.", "literatura de en islam."
"literatura de x islam." » "literatura de e islam.", "literatura de _ islam.", "literatura de el islam.", "literatura del x islam.", "literatura de ix islam.", "literatura de xi islam."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura breve de isaac.") or ((("literatura de x islam.") OR ("literatura de ex islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura breve de isaac.") OR ((("literatura de x islam.") OR ("literatura de ex islam."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura breve de isaac.\") or (((\"literatura de x islam.\") OR (\"literatura de ex islam.\"))))*".
• Removing quotes may allow a broader search: (( literatura breve de isaac. ) or ((( literatura de x islam. ) OR ( literatura de ex islam. ))))*.