Foongsathaporn

Foongsathaporn is a Thai surname, not Vietnamese. The contributor who submitted this used a Japanese username. This person obviously do not know the difference in languages or surnames used in Vietnamese or Thai and just attributed it to Vietnamese possibly due to Thai and Vietnamese being both from Southeast Asia. 70-80% of Vietnamese last names can be traced back to a Sino-Vietnamese word or name while it can hardly be done from Thai. Thai last names are polysyllabic, Vietnamese last names are mostly monosyllabic, with some exceptions.