You could make it 7.

Nope, there are probably more than 10 accounts connected to OP, I confirm that that account vanthuong1112 is OP's alt account alongside with thuong1112 and thachthuat because these accounts uses similar eth eddress which is 0x9fC909f0C91729d8c5440607e23483122D608257 from nguyenthachthuat's account profile.

Links:
https://bitcointalk.org/index.php?topic=3359820.msg39197833#msg39197833 - thachthuat's post
https://bitcointalk.org/index.php?topic=4431010.msg42631457#msg42631457 - thuong1112's post

There are still more accounts... Seems like Ban Evasion is OP's favorite hobby.

Not to mention this is my 1000th post