Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
danh vi » hanh vi, dinh vi, danh di
duoc ma » duoc lam
duoc va » nuoc va, duc va, duong va
de luat » de xuat, ve luat, dan luat
hieu de » hieu ve, hieu he, hieu le
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
vu sac » vu sach, vu san, va sac

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 ky ((nang ma) or (tang ma)) hoi. hieu de luat ((duoc va) OR (duoc ma)) danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky ((nang ma) OR (tang ma)) hoi. hieu de luat ((duoc va) OR (duoc ma)) danh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky ((nang ma) or (tang ma)) hoi. hieu de luat ((duoc va) OR (duoc ma)) danh vi cua tre*".