Perhaps you should try some spelling variations:
doanh thua » doanh thuc, doanh khoa, doanh cua
hang khoa » dung khoa
doanh thu » doanh tai
ban hang » ngan hang
luan ket » lien ket
ket luan » ket qua, te luan, dat luan
luan tri » quan tri, luan thi, luat tri
nhan » phan

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 tri nhan sinh ((doanh thua) OR (doanh thu)) thien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan ket luan tri nhan sinh ((doanh thua) OR (doanh thu)) thien".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ket luan tri nhan sinh ((doanh thua) OR (doanh thu)) thien*.