Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hang khoa » dung khoa
khoa lien » khoa tieng, thoai lien, khoa luan
cua triet » cua viet, su triet, va triet
triet thi » trieu thi, trien thi, tiet thi
ban hang » ngan hang
lien ket » thien ket
thi kinh » tri kinh, thi minh, thi hinh
ket cua » ket qua, det cua, keo cua

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 ket cua triet thi kinh doanh hoan (thien OR thieu)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa lien ket cua triet thi kinh doanh hoan (thien OR thieu)".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa lien ket cua triet thi kinh doanh hoan (thien OR thieu)*.