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