Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
thanh hieu » thanh thieu, thanh hien, thanh hiep
hang khoa » dung khoa
ban hang » ngan hang
luan ket » lien ket
ket luan » ket qua, te luan, dat luan
tieu thu » trieu thi
tieu su » thieu so

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ban hang khoa luan ket luan ((tieu thu) OR (tieu su)) kinh doanh thanh hieu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan ket luan ((tieu thu) OR (tieu su)) kinh doanh thanh hieu".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ket luan ((tieu thu) OR (tieu su)) kinh doanh thanh hieu*.