tai sao khi ban toi dang ki thanh vien TTVNONLINE lai gap loi sau? " Username may not contain the word" xin chi giup toi cach khac phuc? xin cam on!
ban cu dang ki lai lan nua ....goi la sua loi ay ma...neu khong xem lai usename cua ban co loi khong ...chuc thanh cong gnwuhnsât