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