Hello we giai tri offline, we dev games

1. https://play.google.com/store/apps/details?id=com.giaitri.offline.samloc
2. https://play.google.com/store/apps/details?id=com.giaitri.offline.phomtala
3. https://play.google.com/store/apps/details?id=com.giaitri.offline.tienlen
4. https://play.google.com/store/apps/details?id=com.giaitri.offline.tusac