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