The DEMO version only includes 4 pages:
http://danhlodeonline.net
http://danhlodeonline.net/gioi-thieu.html
http://danhlodeonline.net/nha-cai.html
http://danhlodeonline.net/so-mo.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