More photos of fruitstands in Vietnam. Always impressive.
The red, pear-shaped fruit you see in the photo below is Water Apple (Syzygium spp), the bright orange fruit behind them is Persimmon (Diospyros). Behind the persimmon is a yellow variety of pomegranate (Punica granatum). The yellowish-red fruit in the foreground is Rambutan (Nephelium lappaceum) which is native to Vietnam, Indonesia, and the Philippines.
In this photo (below), the pink fruit in the foreground is Dragonfruit (Hylocereus). The green fruit to the right of the Dragonfruit is immature Mango (Mangifera indica). The light green fruit below the Dragonfruit is an Annona.