Perhaps you should try some spelling variations:
"literatura del el islam." » "literatura de el islam.", "literatura en el islam.", "literatura del eln islam.", "literatura del eo islam."
"literatura e de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura _ de isaac.", "literatura o de isaac."
"literatura y de islam." » "literatura y del islam.", "literatura y de isla.", "literatura y e 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 el islam.") OR ("literatura e de isaac."))) OR ("literatura y de islam."))~.
• Removing quotes may allow a broader search: (((( literatura del el islam. ) or ( literatura e de isaac. ))) or ( literatura y de islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura del el islam.") or ("literatura e de isaac."))) or ("literatura y de islam."))*.