This is his old post, you can’t edit this anymore. You also used the university address.

Post: https://tasteem.io/post/14337

Related link:

https://vi.wikipedia.org/wiki/Tr%C6%B0%E1%BB%9Dng_%C4%90%E1%BA%A1i_h%E1%BB%8Dc_K%E1%BB%B9_thu%E1%BA%ADt_C%C3%B4ng_nghi%E1%BB%87p,_%C4%90%E1%BA%A1i_h%E1%BB%8Dc_Th%C3%A1i_Nguy%C3%AAn