Perhaps you should try some spelling variations:
"literatura maria de isaac." » "literatura america de isaac.", "literatura memoria de isaac.", "literatura musica de isaac.", "literatura maria del isaac."
"literatura e de isla." » "literatura de de isla.", "literatura en de isla.", "literatura del de isla.", "literatura y de isla.", "literatura o de isla."
"literatura _ de islam." » "literatura _ del islam.", "literatura _ e islam.", "literatura _ de ilam."

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 isla.") or ("literatura _ de islam."))) or ("literatura maria de isaac."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e de isla.") OR ("literatura _ de islam."))) OR ("literatura maria de isaac."))*.
• Removing quotes may allow a broader search: (((( literatura e de isla. ) or ( literatura _ de islam. ))) or ( literatura maria de isaac. ))*.