Perhaps you should try some spelling variations:
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
duoc va » nuoc va, duoc ma, duong va
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
ve dat » de dat, va dat, ve dao
di cua » dai cua, doi cua, de cua

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 tang ma hoi. hieu ve dat ((duoc va) or (duc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang ma hoi. hieu ve dat ((duoc va) OR (duc va)) hanh di cua tre*.