Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
va lam » van lam, va lap
xuc va » tuc va, luc va, xac va

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: tu san ky tang ma hoi. hieu va lam ((xuc va) OR (duc va)) thanh dai cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu san ky tang ma hoi. hieu va lam ((xuc va) or (duc va)) thanh dai cua tre*.