Chess.com: https://www.chess.com/member/namkhanhk10
Lichess.org: https://www.lichess.org/@/namkhanhk10
Zalo: No, u can't know ;-;
Note:
Not pro player ;;;-;;;
Clubs
Việt Nam
50,597 Members
CLB SănHuyChương
81 Members
Live Chess World League
420 Members
𝔸ℕ𝕀𝕄𝔼 𝕎𝕆ℝ𝕃𝔻
1,129 Members
The National Of Wolf
66 Members