This represents a unique code. It could indicate specific record. To fully comprehend its meaning, we require more details. It's possible it corresponds to a unique file. Looking into the where it came from of this symbol would be helpful. Thomo Truc Tiep Da Ga 2023 Thoi gian den tai/vào/cho ??n ngay thang/ngày tháng/ngày/ 15/m??i l?m