Perhaps you should try some spelling variations:
"literatura e de isaacm." » "literatura de de isaacm.", "literatura en de isaacm.", "literatura del de isaacm.", "literatura e de isaac.", "literatura e de islam.", "literatura e e isaac.", "literatura _ de isaacm.", "literatura o de isaacm."
"literatura e de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isla.", "literatura e de isaac.", "literatura _ de isla.", "literatura o de isla."
"literatura y de isla." » "literatura y de isaac."

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 e de isaacm.") or ((("literatura e de isla.") OR ("literatura y de isla."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura e de isaacm.") OR ((("literatura e de isla.") OR ("literatura y de isla.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura e de isaacm.\") or (((\"literatura e de isla.\") OR (\"literatura y de isla.\"))))".
• Removing quotes may allow a broader search: (( literatura e de isaacm. ) or ((( literatura e de isla. ) OR ( literatura y de isla. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura e de isaacm.") or ((("literatura e de isla.") OR ("literatura y de isla."))))*.