Founded in 1630 by Jesuit missionary Alexander de Rhodes, Domus Dei has a long history of evangelization. After 1954,
when Vietnam was divided in two, many Catholics moved from the Communist North to the South where they could freely practice their religion. During this time, Domus Dei members helped immigrants adapt to the culture and environment in their new land.
That ended in 1975, when the communists overtook the South as well. Many Domus Dei Religious fled the country to the United States, where the mission has continued.
Link (here) to the full article in the Catholic Sentinel