Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc van » oc van, sac van, soc dan
hoc van » hoc dan, hoc va, hoc vat
lai cua » dai cua, hai cua, lai chau
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 van)) hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (v nang)) x hoi. hieu ve cham ((soc van) OR (hoc van)) hanh lai 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 van)) hanh lai cua tre*.