Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
sinh doanh » kinh doanh, sinh danh, minh doanh
hang khoa » dung khoa
tieu nhan » tiep nhan, tieu chuan, trien nhan
hoan hien » hoan thien, han hien, hoa hien
ban hang » ngan hang
ket luan » ket qua, te luan, ket doan
dat luan » dan luan, dau luan, dat quang

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan ((ket luan) OR (dat luan)) tieu nhan sinh doanh hoan hien~".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan ((ket luan) OR (dat luan)) tieu nhan sinh doanh hoan hien*.