Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc van » hoc van, oc van, sac van
hoc vat » hoc va, hoc viet, thuc vat
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
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: te sach ((y nang) OR (v nang)) x hoi. hieu ve cham ((soc van) OR (hoc vat)) hanh tai cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (v nang)) x hoi. hieu ve cham ((soc van) or (hoc vat)) hanh tai cua tre*.