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 en de islam." » "literatura espana de islam.", "literatura en del islam.", "literatura en de isla.", "literatura en e islam."
"literatura de de islam." » "literatura de del islam.", "literatura de de isla.", "literatura de e islam.", "literatura de fe islam.", "literatura de di islam."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura en de islam.") OR ("literatura de de islam."))) or ("literatura maria de isaac."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura en de islam.") OR ("literatura de de islam."))) OR ("literatura maria de isaac."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura en de islam.\") OR (\"literatura de de islam.\"))) or (\"literatura maria de isaac.\"))*".
• Removing quotes may allow a broader search: (((( literatura en de islam. ) OR ( literatura de de islam. ))) or ( literatura maria de isaac. ))*.