Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
cham duc » pham duc, cham soc, pham duy
thanh di » thanh doi, thanh de, thanh do
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
duc gia » quoc gia
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cu cao ky nang ((mai hoi) OR (mai khoi)). hieu ve cham duc gia thanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: cu cao ky nang ((mai hoi) or (mai khoi)). hieu ve cham duc gia thanh di cua tre*.