Perhaps you should try some spelling variations:
doanh phan » doanh nhan, doan phan, doanh thanh
doanh han » doanh nhan, doanh hoan, doanh ban
dung khoa » dung cho
dan dung » van dung, tin dung, ap dung
luan ket » lien ket
qua tieu » luan tieu
tieu nha » tieu nhan, lieu nha, kieu nha
nha kinh » than kinh, nhan sinh, 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: dan dung khoa luan ket qua tieu nha kinh ((doanh han) OR (doanh phan)) hien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dan dung khoa luan ket qua tieu nha kinh ((doanh han) OR (doanh phan)) hien".
• Adding a wildcard symbol may retrieve word variants: dan dung khoa luan ket qua tieu nha kinh ((doanh han) OR (doanh phan)) hien*.