Career
He is the author of many studies on village society, landholding patterns and peasant revolution in particular, and in Vietnamese history in general. He is considered by many as "doyen of Vietnamese historians." He is also director of the Center for Vietnamese and Intercultural Studies at Vietnam National University, Hanoi. He belongs to the school of historians, including also Trần Quốc Vượng distinguishing "Vietnamese-ness" without relation to Chinese influences.