Perhaps you should try some spelling variations:
hang khoa » dung khoa
luan tieu » luan thiet
tieu nhan » tiep nhan, tieu chuan, trien nhan
nhan kinh » than kinh, nha kinh, nhan sinh
khoa kham » khoa than
ban hang » ngan hang
luan dac » luan danh, luan van, luan va
dac luan » dan luan, dat luan, dau luan
kho khan » 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: ban hang khoa luan dac luan tieu nhan kinh doanh ((kho khan) OR (khoa kham))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan dac luan tieu nhan kinh doanh ((kho khan) OR (khoa kham))".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan dac luan tieu nhan kinh doanh ((kho khan) OR (khoa kham))*.