Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
thuat lap » thuat lanh, thuat xay, thuat bai
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet

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) OR (thuat lap)) ky ((nang xa) OR (nang x)) hoi. hieu van cam duc va thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat lap)) ky ((nang xa) OR (nang x)) hoi. hieu van cam duc va thanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat lap)) ky ((nang xa) OR (nang x)) hoi. hieu van cam duc va thanh dai cua tre*.