Perhaps you should try some spelling variations:
dan xanh » dan canh, dan hanh, dang hanh
thuc dan » thuc hanh, hoc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
vu sach » vu bach, su sach, vu khach
xanh di » danh di, vanh dai, xanh tai
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
va nang » van nang, da nang, cam nang
v nang » vu nang, van nang, voi nang
di cua » dai cua, doi cua, de cua
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 va)) nam thuc dan xanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: vu sach ((v nang) or (va nang)) x hoi. ((hieu ve) or (hieu va)) nam thuc dan xanh di cua tre*.