Perhaps you should try some spelling variations:
ban hanh » ban hang
mai hoi » mai khoi, dai hoi, mai doi
lai hoi » dai hoi, lai hoa, lai roi
van cam » van lam, van cau, van dam
xuc ban » duc ban, cuc ban, quoc ban
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
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 sai ky nang ((mai hoi) OR (lai hoi)). hieu ((van cam) or (van nam)) xuc ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ((mai hoi) OR (lai hoi)). hieu ((van cam) OR (van nam)) xuc ban hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang ((mai hoi) OR (lai hoi)). hieu ((van cam) or (van nam)) xuc ban hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ((mai hoi) OR (lai hoi)). hieu ((van cam) or (van nam)) xuc ban hanh vi cua te*.