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

Try widening your search to All Fields.

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

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