The DEMO version only includes 4 pages:
http://maylanhkimtinphat.com
http://maylanhkimtinphat.com/dich-vu-sua-tu-lanh-tai-nha-quan-3.html
http://maylanhkimtinphat.com/sua-tu-lanh-tai-nha-quan-tan-phu-uy-tin-gia-re.html
http://maylanhkimtinphat.com/hoi-may-lanh-kem-lanh-chi-co-gio-khong-lanh-phai-lam-sao.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.
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