Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, dong doanh
doanh thanh » danh thanh, doanh nhan, dinh thanh
thuat san » thuat toan, thuat song, thuat lanh
hang khoa » dung khoa
ban hang » ngan hang
luan ket » lien ket
ket luat » ket qua, ve luat
ki thuat » ky thuat
luat ki » luat ke, luat vi, luat 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 luat ki thuat san ((doanh doanh) OR (doanh thanh)) hien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan ket luat ki thuat san ((doanh doanh) OR (doanh thanh)) hien".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ket luat ki thuat san ((doanh doanh) OR (doanh thanh)) hien*.