Perhaps you should try some spelling variations:
"literatura del c isaac." » "literatura de c isaac.", "literatura en c isaac.", "literatura del _ isaac.", "literatura del e isaac.", "literatura del de isaac.", "literatura del v isaac."
"literatura a dde isaacm." » "literatura al dde isaacm.", "literatura e dde isaacm.", "literatura de dde isaacm.", "literatura a de isaac.", "literatura a de isaacm."
"literatura y de isla." » "literatura y de isaac."

You may be able to get more results by adjusting your search query.

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