Perhaps you should try some spelling variations:
"literatura en _l islam." » "literatura espana _l islam.", "literatura en el islam.", "literatura en al islam.", "literatura en _ islam."
"literatura de del islam." » "literatura de el islam."
"literatura del e islam." » "literatura del el islam.", "literatura del e islas.", "literatura del v islam.", "literatura del _ islam.", "literatura del c islam."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura del e islam.") OR ("literatura de del islam."))) OR ("literatura en _l islam."))~.
• Removing quotes may allow a broader search: (((( literatura del e islam. ) or ( literatura de del islam. ))) or ( literatura en _l islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura del e islam.") or ("literatura de del islam."))) or ("literatura en _l islam."))*.