Perhaps you should try some spelling variations:
"literatura en de islam." » "literatura de de islam.", "literatura espana de islam.", "literatura en de isla.", "literatura en e islam.", "literatura en de ilam."
"literatura _ del islam." » "literatura _ el islam."
"literatura _ de islam." » "literatura _ de isla.", "literatura _ e islam.", "literatura _ de ilam."

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

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