Yes I understand what you are talking about though by most standards my English is a whole lot better than my Chinese (or so I'm told) because I'm originally from Taiwan and my Dad is Cantonese even though he grew up in Vietnam. So at home I tend to get a mix of Cantonese, Mandarin and Hokkien rather than one straight dialect spoken at home.
Yvonnes, I'd tell you what they are in Vietnamese unfortunately I'd have to ask my dad first how to say it so I'll be back to tell you later!