Perhaps you should try some spelling variations:
"literatura del dean isaac." » "literatura en dean isaac.", "literatura del de isaac.", "literatura del dan isac.", "literatura del en isaac.", "literatura del dano isaac.", "literatura del dia isaac."
"literatura e de isla." » "literatura en de isla.", "literatura e de isaac.", "literatura de de isla.", "literatura y de isla.", "literatura _ de isla."
"literatura de dde isaacm." » "literatura de de isaac.", "literatura de ddr isaacm.", "literatura de ddt isaacm.", "literatura de dades isaacm."

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