This study aims to evaluate the effectiveness of applying measures to improve students' positivity during Vovinam lessons at FPT University Ho Chi Minh City (FPT University). Thereby, it serves as a basis for monitoring, adjusting, and changing the content of Vovinam subjects to suit the students being trained in the school. We conducted indirect interviews with research subjects using a questionnaire on a Likert scale (5 levels) to identify difficulties and obstacles while teaching and learning Vovinam. After interviews, 10 possible solutions were selected to put into practice. At the same time, conduct a reality check to understand the change in students' positivity after applying measures to enhance positivity during Vovinam lessons. After the experimental period, it was shown that the positivity (including intellectual positivity; cognitive positivity; learning positivity) of students in the experimental group (experimental group) and the control group (control group) both increased. However, the growth of the experimental group was clearly and statistically significantly higher (with P<0.05) than that of the control group’s.