Perhaps you should try some spelling variations:
"literatura o de islam." » "literatura e de islam.", "literatura a de islam.", "literatura _ de islam.", "literatura o de isla.", "literatura o e islam.", "literatura o de ilam.", "literatura y de islam."
"literatura o del islam." » "literatura e del islam.", "literatura a del islam.", "literatura _ del islam.", "literatura o el islam.", "literatura y del islam."
"literatura de di isaac." » "literatura de de isaac.", "literatura de _ isaac.", "literatura de c isaac.", "literatura de mi isaac.", "literatura de si isaac."

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 o de islam.") OR ("literatura o del islam."))) OR ("literatura de di isaac."))~.
• Removing quotes may allow a broader search: (((( literatura o de islam. ) or ( literatura o del islam. ))) or ( literatura de di isaac. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura o de islam.") or ("literatura o del islam."))) or ("literatura de di isaac."))*.