Perhaps you should try some spelling variations:
"literatura del de isaias." » "literatura en de isaias.", "literatura del de indias.", "literatura del de isaac.", "literatura del dean isaias."
"literatura _ de islas." » "literatura _ e islas.", "literatura _ de isla.", "literatura _ dos islas."
"literatura de de islam." » "literatura de del islam.", "literatura de de isla.", "literatura de e 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 del de isaias.") or ("literatura _ de islas."))) or ("literatura de de islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura del de isaias.") OR ("literatura _ de islas."))) OR ("literatura de de islam.")).
• Removing quotes may allow a broader search: (((( literatura del de isaias. ) or ( literatura _ de islas. ))) or ( literatura de de islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura del de isaias.") or ("literatura _ de islas."))) or ("literatura de de islam."))*.