From Wiktionary, the free dictionary
xe (“vehicle”) + than (“coal”). Than also means "to moan", which is how some have described the vehicles.[1]
xe than
- (historical) A minibus that has been converted to run on coal.
- ^ Phạm Trần (2006 November 20) “Xe "than"”, in tuoitre.vn[1] (in Vietnamese), retrieved 24 April 2023