Perhaps you should try some spelling variations:
"literatura e del islam." » "literatura de del islam.", "literatura en del islam.", "literatura del del islam.", "literatura e el islam.", "literatura 5e del islam.", "literatura e de islam."
"literatura a de isla." » "literatura al de isla.", "literatura de de isla.", "literatura en de isla.", "literatura a de isaac.", "literatura y de isla.", "literatura _ de isla.", "literatura o de isla."
"literatura y del islam." » "literatura y el 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 del islam.") OR ("literatura y del islam."))) or ("literatura a de isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e del islam.") OR ("literatura y del islam."))) OR ("literatura a de isla."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura e del islam.\") OR (\"literatura y del islam.\"))) or (\"literatura a de isla.\"))*".
• Removing quotes may allow a broader search: (((( literatura e del islam. ) OR ( literatura y del islam. ))) or ( literatura a de isla. ))*.