Perhaps you should try some spelling variations:
lam duoc » nam duoc, luat duoc, lam thuoc
tinh vai » tinh hai, tinh bai, tinh lai
cua tre » cua te, cuu tre, cua triet
dinh vi » dinh ve, dinh viet, dinh tri
tinh va » tich va, trinh van, trinh vat
duoc va » nuoc va, duc va, duoc ma
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
va lam » van lam, va lap
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. hieu va lam duoc va ((((tinh vai) or (tinh va))) or (dinh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu va lam duoc va ((((tinh vai) OR (tinh va))) OR (dinh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu va lam duoc va ((((tinh vai) or (tinh va))) or (dinh vi)) cua tre*.