Perhaps you should try some spelling variations:
dat duoc » dat nuoc, da duoc, luat duoc
cua tre » cua te, cuu tre, cua triet
ma hanh » va hanh, da hanh, na hanh
duoc ma » duoc lam
nang ma » sang ma, nang cao, mang may
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
ve dat » de dat, va dat, ve dao
vu sac » vu sach, va sac, vu cac
vu san » va san, vu ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sac) OR (vu san)) ky ((nang ma) or (tang ma)) hoi. hieu ve dat duoc ma hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (vu san)) ky ((nang ma) OR (tang ma)) hoi. hieu ve dat duoc ma hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) OR (vu san)) ky ((nang ma) or (tang ma)) hoi. hieu ve dat duoc ma hanh vi cua tre*".