Hi Mary,
Generally, "education and training" is among one of the of sectors in which foreign investment is ‘conditional’.
Approval of investment in these conditional sectors requires detailed analysis of the application for investment approval. This may include consultation with relevant line ministries, and preparation and presentation of evidence relating to the investors’ expertise and experience in the relevant industry. In certain sectors, the Prime Minister’s approval is required. Other applicable conditions may include minimum levels of investment capital, requirements for professional qualifications.
However per our discussion with PwC Vietnam, it is feasible for 100% foreign investment into such business after the approval process.