Perhaps you should try some spelling variations:
ve chat » va chat, van chat
duc ban » duc tan, duc van, dua ban
dai hoi » dai hoc, dai hai, dai moi
hang vi » hang va, hanh vi, hang di
loi roi » loi noi, lai roi, voi roi
hieu ve » hieu va, hieu van
xuc ban » cuc ban, quoc ban, xuat ban
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua te » cua tu

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 ((dai hoi) OR (loi roi)). hieu ve chat ((xuc ban) OR (duc ban)) hang vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((dai hoi) or (loi roi)). hieu ve chat ((xuc ban) OR (duc ban)) hang vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((dai hoi) or (loi roi)). hieu ve chat ((xuc ban) OR (duc ban)) hang vi cua te*.