How To Select Non English Values From A Table?

CREATE TABLE product
( product_id integer
, translated_name NVARCHAR2(50) );

insert into product values(1,N'kenenisa')
insert into product values(2,N'Ethiopia')
Note that i have used N becuase it is unicode data
then
select * from product; this works fine.
select * from product where product_id=1; this also works fine,
but
select * from product where translated_name=N'kenenisa'; this doesnot work correctly, so how can i fix this problem ?