Vietnam is a country that does not use English as the main language for communication. Therefore, access to language other than mother tongue is always a barrier to those who wish to study or work abroad. There is no denying that wherever you go and do anything other than the territory where you were born, good communication is the key to success in your country. With the integration and growth of globalization, English has become a global language, a solid bridge for cultural intercourse and global economic development.