Thanks for the updated credentials.
It took me a while to find, but the issue is that you've included the following Open Graph tag in a menu item title:
Trang Chủ {SCOpenGraph title=Đánh Giá}
That menu is shown on every page of your site. Because of that, the tag is being seen by JFBConnect on every page of your site and setting the title to "Đánh Giá" on each page.
I know you mentioned why you did that before, but I don't recall the reason. Can you let me know what you were trying to do, and we'll help you find a much better solution that's specific to just the page you want that title to work on.
Thanks,
Alex