Perhaps you should try some spelling variations:
"literatura cubana de isaac." » "literatura espana de isaac.", "literatura alemana de isaac.", "literatura colombiana de isaac."
"literatura area de isla." » "literatura aurea de isla.", "literatura arte de isla.", "literatura armenia de isla."
"literatura _ de ilam." » "literatura _ de islam.", "literatura _ de chilam."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura cubana de isaac.") OR ("literatura area de isla."))) OR ("literatura _ de ilam."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura cubana de isaac.\") OR (\"literatura area de isla.\"))) OR (\"literatura _ de ilam.\"))*".
• Removing quotes may allow a broader search: (((( literatura cubana de isaac. ) OR ( literatura area de isla. ))) OR ( literatura _ de ilam. ))*.