Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hang khoa » dung khoa
thiet bai » thiet bi, thiet hai, thuyet bai
ban hang » ngan hang
luan ket » lien ket
ket luan » ket qua, te luan, dat luan
bai kinh » bac kinh, ai kinh, mai 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 hang khoa luan ket luan thiet bai kinh doanh hoan thien~.
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ket luan thiet bai kinh doanh hoan thien*.