Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
vu nang » vuc nang, va nang, vu dang
xuc van » duc van, luc van, vuc van
di cua » dai cua, doi cua, de cua
ve cac » va cac
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, van nang, voi nang
cua cu » cua chu, cua cau, cua su

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vu nang)) ma hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh di cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (vu nang)) ma hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh di cua cu~".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vu nang)) ma hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh di cua cu*.