How to get to Saigon by subway from Courtyard by Marriott Sha Tin, Hong Kong?

Can't take the subway According to Baidu map survey, Courtyard by Marriott Sha Tin, Hong Kong doesn't have a subway to Saigon, so it needs to take a bus. Subway is a kind of fast, large-capacity and electric traction rail transit built in cities. Trains run on fully enclosed lines, the lines located in the central city are basically located in underground tunnels, and the lines outside the central city are generally located on viaducts or on the ground.