Perhaps you should try some spelling variations:
doanh luan » doanh nhan
hanh doanh » hang doanh, chinh doanh, doanh doanh
thien anh » thien danh, tien anh, thien thanh
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
cong thuc » cong tac
thuc phan » thuc pham, thu phan, thuc chan
hien anh » hien hanh, dien anh, tien anh
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien anh) or (thien anh)) - hanh doanh luan nang cong thuc phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (thien anh)) - hanh doanh luan nang cong thuc phan cac*.