Perhaps you should try some spelling variations:
"literatura _ ddel islam." » "literatura _ del islam.", "literatura _ el islam.", "literatura _ de islam."
"literatura de fe islam." » "literatura de e islam.", "literatura de de islam.", "literatura de del islam."
"literatura y de islas." » "literatura y e islas.", "literatura y de isla.", "literatura y de 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 _ ddel islam.") or ((("literatura de fe islam.") or ("literatura y de islas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura _ ddel islam.") OR ((("literatura de fe islam.") OR ("literatura y de islas."))))*.
• Removing quotes may allow a broader search: (( literatura _ ddel islam. ) or ((( literatura de fe islam. ) or ( literatura y de islas. ))))*.