Perhaps you should try some spelling variations:
"literatura maria de isla." » "literatura america de isla.", "literatura memoria de isla.", "literatura musica de isla.", "literatura maria del isla.", "literatura maria de isaac."
"literatura de de isaacm." » "literatura de de isaac.", "literatura de de islam.", "literatura de e isaac.", "literatura de di isaacm."
"literatura de fe isaacm." » "literatura de de isaac.", "literatura de e 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 de de isaacm.") OR ("literatura de fe isaacm."))) or ("literatura maria de isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de de isaacm.") OR ("literatura de fe isaacm."))) OR ("literatura maria de isla.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura de de isaacm.\") OR (\"literatura de fe isaacm.\"))) or (\"literatura maria de isla.\"))".
• Removing quotes may allow a broader search: (((( literatura de de isaacm. ) OR ( literatura de fe isaacm. ))) or ( literatura maria de isla. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura de de isaacm.") OR ("literatura de fe isaacm."))) or ("literatura maria de isla."))*.