Perhaps you should try some spelling variations:
"literatura o del islam." » "literatura e del islam.", "literatura a del islam.", "literatura con del islam.", "literatura o el islam.", "literatura y del islam.", "literatura o de islam."
"literatura de las islas." » "literatura de las ideas."
"literatura _ e islam." » "literatura _ el islam.", "literatura _ e islas."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura de las islas.") or ((("literatura o del islam.") or ("literatura _ e islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura de las islas.") OR ((("literatura o del islam.") OR ("literatura _ e islam."))))*.
• Removing quotes may allow a broader search: (( literatura de las islas. ) or ((( literatura o del islam. ) or ( literatura _ e islam. ))))*.