Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
cam thu » nam thu, cac thu, ca thu
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nam tu » nam thu, nam thuc
va cua » va chua, via cua, ca cua
cua te » cua tu
5 hoi » o hoi

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: tu sac ky nang ((5 hoi) OR (x ho)). hieu ve ((cam thu) OR (nam tu)) va hanh va cua te~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((5 hoi) or (x ho)). hieu ve ((cam thu) or (nam tu)) va hanh va cua te*.