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