Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
cao hoi » cau hoi, co hoi, cao hoc
hieu su » hieu sau, hieu so, hieu suat
tieu su » thieu so
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xu ban » xuc ban, tu ban, vu ban
cua tu » cua tuc, cua su, cua cu

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