Perhaps you should try some spelling variations:
"literatura el de isaac." » "literatura del de isaac.", "literatura de de isaac.", "literatura eslava de isaac.", "literatura dell de isaac."
"literatura en e islam." » "literatura de e islam.", "literatura espana e islam.", "literatura den e islam.", "literatura deln e islam.", "literatura en el islam.", "literatura en e islas.", "literatura en del islam.", "literatura en en islam.", "literatura en de islam."
"literatura e de isaac." » "literatura de de isaac.", "literatura del de isaac.", "literatura y de isaac.", "literatura _ de isaac."

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