Perhaps you should try some spelling variations:
luat hoi » luat moi, luat so, luat dai
ky dang » ky nang, ky danh
lai hoi » dai hoi, lai hoa, lai roi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
soc va » hoc va, loc va, doc va
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang ((luat hoi) or (lai hoi)). hieu ve cham soc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ((luat hoi) OR (lai hoi)). hieu ve cham soc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ((luat hoi) or (lai hoi)). hieu ve cham soc va hanh vi cua te*.