Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
hieu su » hieu sau, tieu su, hieu so
ky sang » ky nang, ky dang, ky tang
lap hoi » lap doi, lai hoi, luat hoi
su chao » su cao, sau chan
lap hai » lap tai, lap lai, lap hoat
tu sac » tu sach, tu cac, tu bac
vi cua » vai cua, di cua
xu ban » xuc ban, tu ban, vu ban
cua te » cua tu
tu san » thu san, tu ban, tu can

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) OR (tu san)) ky sang ((lap hoi) or (lap hai)). hieu su chao xu ban thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky sang ((lap hoi) OR (lap hai)). hieu su chao xu ban thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky sang ((lap hoi) or (lap hai)). hieu su chao xu ban thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky sang ((lap hoi) or (lap hai)). hieu su chao xu ban thanh vi cua te*.