The DEMO version only includes 4 pages:
http://xedapkhanhhiep.com
http://xedapkhanhhiep.com/trang-chu.html
http://xedapkhanhhiep.com/category/hinh-anh.html
http://xedapkhanhhiep.com/category/bien-so-xe.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