vietosta
Vietosta is a term that sometimes appears in discussions related to the history of Vietnam, particularly concerning the period of French colonial rule. It is not a widely recognized or official historical term and appears to be a portmanteau or a less common descriptor.
The term is thought to be a combination of "Viet" referring to Vietnam and "Osta," potentially derived
Some interpretations suggest that "Vietosta" might have been a nickname or a descriptor for a particular group