Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu sau » hieu suat, tieu su, hieu va
thanh vi » hanh vi, thanh va, thanh ve
chan xu » chang xu, chao xu, nhan xu
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
hieu su » tieu su, hieu so, hieu suat
tu sai » tu bai, tu san, tu cai
vi cua » vai cua, di cua
xu ban » xuc ban, tu ban, vu ban
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 sang) or (ky dang)) lap doi. ((hieu sau) OR (hieu su)) chan xu ban thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ((ky sang) OR (ky dang)) lap doi. ((hieu sau) OR (hieu su)) chan xu ban thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ((ky sang) or (ky dang)) lap doi. ((hieu sau) OR (hieu su)) chan xu ban thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sai ((ky sang) or (ky dang)) lap doi. ((hieu sau) OR (hieu su)) chan xu ban thanh vi cua te*.