Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
cham duc » pham duc, cham soc, pham duy
ky tang » ky nang, ky dang, kho tang
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va xanh » va danh, va hanh, va anh
xanh di » danh di, vanh dai, xanh tai
cua tre » cua te, cuu tre, cua triet
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
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 ((mai hoi) or (mai khoi)). hieu ve cham duc va xanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang ((mai hoi) OR (mai khoi)). hieu ve cham duc va xanh di cua tre*.