Perhaps you should try some spelling variations:
dat duoc » dat nuoc, da duoc, luat duoc
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cua tre » cua te, cuu tre, cua triet
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
ve dat » de dat, va dat, ve dao
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua
va sac » va cac, va suc, va san

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

• Performing a fuzzy search may retrieve terms with similar spellings: va sac ky tang ma hoi. hieu ve dat duoc ((va hanh) or (va danh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va sac ky tang ma hoi. hieu ve dat duoc ((va hanh) OR (va danh)) di cua tre*.