The DEMO version only includes 4 pages:
http://thuenhaxuongbinhduong.com
http://thuenhaxuongbinhduong.com/index_do-cart-act-add-id-862-lg-vn-sl-1.html
http://thuenhaxuongbinhduong.com/index_do-cart-act-add-id-861-lg-vn-sl-1.html
http://thuenhaxuongbinhduong.com/index_do-cart-act-add-id-860-lg-vn-sl-1.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