Perhaps you should try some spelling variations:
doanh phan » doanh nhan, doan phan, doanh thanh
hang khoa » dung khoa
khoa lien » khoa tieng, thoai lien, khoa luan
luan dieu » luan tieu, lan dieu, luan hieu
doanh han » doanh nhan, doanh hoan, doanh ban
ban hang » ngan hang
lien dat » mien dat, tien dat, lieu data
dat luan » dan luan, dau luan, dat quang
dieu thi » dieu tri, sieu thi, dien thi
thi kinh » tri kinh, thi minh, thi hinh

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 lien dat luan dieu thi kinh ((doanh han) OR (doanh phan)) hien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa lien dat luan dieu thi kinh ((doanh han) OR (doanh phan)) hien".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa lien dat luan dieu thi kinh ((doanh han) OR (doanh phan)) hien*.