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