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

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