1996 - 2002: General practitioner, Thai Nguyen University of Medicine
2002 - 2007: Dentist - Jaw - Facial Doctor, Coal Vang Danh Hospital
2004 - 2005: Orientation to specialize in Dentistry - Jaw - Facial, Hanoi University of Dentistry - Maxillofacial - Facial
2011 - 2013: Specialist Doctor I, Medical University - Hanoi
March - May 2017: High-tech training on Longline catheterization, invasive arterial blood pressure measurement, blood exchange
2018: Clinical teaching training (Part-time lecturer)