The DEMO version only includes 4 pages:
http://raovatdanang.net
http://raovatdanang.net/contact/Cham-soc-khach-hang.html
http://raovatdanang.net/about.html
http://raovatdanang.net/about/Gioi-thieu-ve-Rao-vat-Da-Nang.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page