Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
doanh toan » doanh hoan, doanh thanh, doanh tai
hang khoa » dung khoa
ban hang » ngan hang
luan ket » lien ket
qua tieu » luan tieu
tieu su » thieu so
su kinh » qua kinh

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 qua tieu su kinh ((doanh toan) OR (doanh doanh)) tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan ket qua tieu su kinh ((doanh toan) OR (doanh doanh)) tien".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ket qua tieu su kinh ((doanh toan) OR (doanh doanh)) tien*.