Perhaps you should try some spelling variations:
sinh doanh » kinh doanh, sinh danh, minh doanh
quan trien » quang thien, quan tri, quan dien
nhan thien » than thien, hoan thien, nhan vien
hang khoa » dung khoa
quan tren » quan trong, quang tran, quan tri
ban hang » ngan hang
luan » lan

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 van ((quan trien) OR (quan tren)) nhan sinh doanh nhan thien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ban hang khoa luan van ((quan trien) OR (quan tren)) nhan sinh doanh nhan thien".
• Adding a wildcard symbol may retrieve word variants: ban hang khoa luan van ((quan trien) OR (quan tren)) nhan sinh doanh nhan thien*.