Topic: Vietnam has been facing brain drain in some recent decades. What are the reasons that many overseas Vietnamese students do not want to return to work in Vietnam? Support your position with reasons and examples taken from your reading, experience, or observations. Brain drain is an enduringly and infinitely debatable subject. Recently, Vietnam has been facing it more and more. There are a lot of reasons that make overseas Vietnamese student do not want to come back. And I'm going to mention some main causes below. Firstly, promoting career opportunity factor. In foreign country, educated system is extremely advanced, this always opens way for scientific research. For example, many universities and academies have modern equipments and powerful technology. On the other hand, there are a great deal of experts and partners who are ready for collaborating with to create the best products. By contrast, after returning to Vietnam, they hardly approach to those targets, especially ex...