Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
hieu vu » hieu va, hieu ve, hieu su
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, mai hoi
lai roi » loi roi
vu chat » va chat, ve chat, du chat
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
xuc va » tuc va, luc va, xac va
sac ky » cac ky, sai ky
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 sang ((lai hoi) or (lai roi)). hieu vu chat ((xuc va) OR (duc va)) thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ((lai hoi) OR (lai roi)). hieu vu chat ((xuc va) OR (duc va)) thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ((lai hoi) or (lai roi)). hieu vu chat ((xuc va) OR (duc va)) thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((lai hoi) or (lai roi)). hieu vu chat ((xuc va) OR (duc va)) thanh vi cua te*.