Perhaps you should try some spelling variations:
thanh tap » thanh lap, thanh tai, thanh tay
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
hoc van » hoc dan, hoc va, hoc vat
tap cua » tap quan, tiep cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
oc van » luoc van, quoc van
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 x hoi. hieu ve cham ((oc van) OR (hoc van)) thanh tap cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ve cham ((oc van) or (hoc van)) thanh tap cua tre*.