Perhaps you should try some spelling variations:
nhan hang » ngan hang, nhan dang, nha hang
hang khoa » dung khoa
thiet thu » thi thu, thien tu, thiet yeu
doanh kho » doanh khoa, doanh cho, doanh nho
ket luan » ket qua, te luan, ket doan
dat luan » dan luan, dau luan, dat quang
thu kinh » thu minh, thuat kinh, nha kinh
kho khan » khoa kham, khoa than

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhan hang khoa luan ((ket luan) OR (dat luan)) thiet thu kinh doanh kho khan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nhan hang khoa luan ((ket luan) OR (dat luan)) thiet thu kinh doanh kho khan".
• Adding a wildcard symbol may retrieve word variants: nhan hang khoa luan ((ket luan) OR (dat luan)) thiet thu kinh doanh kho khan*.