Hi bro, since u are working in Vietnam and staying in Phu nhuan district, if u cannot find anything there, u might want to try this cafe "That ca phe at 1208 truong Sa street, P14, Phu nhuan".
They have young waitress some wearing sexy butterfly around the table to entertain customer. Not a place for hanky panky but some waitress try make eye contact with me, maybe a good place to hook up a short term gf or perhaps some willing to meet outside for extra
I gave 100K for tip to the waitress sit with me, she seem very happy.
If ur apartment not convenient, try short time hotel though im not sure where in Phu nhuan. Alternatively, try get a guide bring u around. Previous posting by other bro, guide bring them to some dirty MP around go Vap district which is quite near Phu nhuan.
Problem with zalo easy to navigate around and search for girls, but u do it in places like malaysia and phnom penh, many WL can voice message back in chinese. But u do it in Vietnam, it is difficult if dont understand vietnamese language.