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