Perhaps you should try some spelling variations:
"literatura general el islam." » "literaria general el islam.", "literatura griega el islam.", "literatura oral el islam.", "literatura general del islam.", "literatura general en islam.", "literatura general de islam."
"literatura y de islam." » "literatura y del islam.", "literatura y e islam.", "literatura y de ilam.", "literatura y de isaacm."
"literatura de de isla." » "literatura de de isaac.", "literatura de fe isla.", "literatura de di isla."

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 de de isla.") OR ("literatura y de islam."))) OR ("literatura general el islam."))~.
• Removing quotes may allow a broader search: (((( literatura de de isla. ) or ( literatura y de islam. ))) or ( literatura general el islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de de isla.") or ("literatura y de islam."))) or ("literatura general el islam."))*.