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

Try widening your search to All Fields.

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

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