Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sang lai » sang tai, sang lap, mang lai
va tinh » may tinh
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, lai roi
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
cua tu » cua tuc, cua cu, cua te
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua su » qua su

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. hieu su chao xu ((ban thanh) or (va tinh)) vai ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang lai hoi. hieu su chao xu ((ban thanh) OR (va tinh)) vai ((cua tu) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang lai hoi. hieu su chao xu ((ban thanh) or (va tinh)) vai ((cua tu) or (cua su))*.