Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
dung khai » dang khai, dung khi, quang khai
dung hai » dung tai, dung ha, dung sai
luan ket » lien ket
qua tieu » luan tieu
tieu su » thieu so
su kinh » qua kinh
thien » thieu, tien, hien

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ban ((dung khai) OR (dung hai)) luan ket qua tieu su kinh doanh hoan thien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban ((dung khai) OR (dung hai)) luan ket qua tieu su kinh doanh hoan thien".
• Adding a wildcard symbol may retrieve word variants: ban ((dung khai) OR (dung hai)) luan ket qua tieu su kinh doanh hoan thien*.