Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
danh di » danh du, xanh di, danh dien
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
va nang » van nang, da nang, cam nang
thu va » thuc va, thue va, tu va
v nang » vu nang, van nang, voi nang
di cuu » di cau, di cua, dinh cuu
x hoi » xa hoi, o hoi, x ho

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: vu sach ((v nang) OR (va nang)) x hoi. ((hieu ve) OR (hieu qua)) nam thu va danh di cuu tre~.
• Adding a wildcard symbol may retrieve word variants: vu sach ((v nang) or (va nang)) x hoi. ((hieu ve) or (hieu qua)) nam thu va danh di cuu tre*.