Perhaps you should try some spelling variations:
"literatura dell de isaac." » "literatura de de isaac.", "literaturas del de isaac.", "literatura el de isaac.", "literatura del de isaac.", "literatura puell de isaac.", "literatura pell del isaac."
"literatura del el islam." » "literatura de el islam.", "literatura del eln islam.", "literatura del eo islam."
"literatura en de islam." » "literatura de de islam.", "literatura espana de islam.", "literatura en del islam.", "literatura en de isla.", "literatura en e 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 del el islam.") or ((("literatura dell de isaac.") or ("literatura en de islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura del el islam.") OR ((("literatura dell de isaac.") OR ("literatura en de islam.")))).
• Removing quotes may allow a broader search: (( literatura del el islam. ) or ((( literatura dell de isaac. ) or ( literatura en de islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura del el islam.") or ((("literatura dell de isaac.") or ("literatura en de islam."))))*.