Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
te sach » toc sach
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
dai hoi » dai hoc, dai hai, dai moi
lai hoi » lai hoa, lai roi, mai hoi
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((lai hoi) or (dai hoi)). hieu vu cham xuc ((van thanh) or (ban hanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((lai hoi) OR (dai hoi)). hieu vu cham xuc ((van thanh) OR (ban hanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((lai hoi) or (dai hoi)). hieu vu cham xuc ((van thanh) or (ban hanh)) di cua tre*.