Perhaps you should try some spelling variations:
"literaturas del de isaac." » "literatura del de isaac.", "literatura en de isaac.", "literaturas del dean isaac."
"literatura e el islam." » "literatura en el islam.", "literatura del el islam.", "literatura de el islam.", "literatura es el islam.", "literatura e el islas.", "literatura e el isla."
"literatura de de isaac." » "literatura de fe isaac.", "literatura de di isaac."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura de de isaac.") or ("literaturas del de isaac."))) or ("literatura e el islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de de isaac.") OR ("literaturas del de isaac."))) OR ("literatura e el islam."))*.
• Removing quotes may allow a broader search: (((( literatura de de isaac. ) or ( literaturas del de isaac. ))) or ( literatura e el islam. ))*.