They left Vietnam carrying dreams of small fortunes and the heavy burden of family expectations. For the 39 migrants who set off from one of the poorest parts of the Southeast Asian country in search of work in Britain, the promise of riches outweighed the risks of the perilous journey through Latvian forests and Belgian streets, to the oxygen-starved truck container in which they met their fate. On Saturday, the last bodies were repatriated to Vietnam.