Perhaps you should try some spelling variations:
"literatura e de islam." » "literatura de de islam.", "literatura en de islam.", "literatura del de islam.", "literatura e del islam.", "literatura e de isla.", "literatura e e islam.", "literatura o de islam.", "literatura a de islam."
"literatura y de islam." » "literatura y del islam.", "literatura y de isla.", "literatura y e islam."
"literatura _ de islam." » "literatura _ del islam.", "literatura _ de isla.", "literatura _ e 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 e de islam.") OR ("literatura y de islam."))) or ("literatura _ de islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e de islam.") OR ("literatura y de islam."))) OR ("literatura _ de islam."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura e de islam.\") OR (\"literatura y de islam.\"))) or (\"literatura _ de islam.\"))*".
• Removing quotes may allow a broader search: (((( literatura e de islam. ) OR ( literatura y de islam. ))) or ( literatura _ de islam. ))*.