Perhaps you should try some spelling variations:
tinh dung » trinh dung, tin dung, tinh quang
hieu suat » hieu luat, hieu qua
danh phan » doanh phan, danh nhan, danh phap
than dieu » nhan dieu, han dieu, thuat dieu
van hieu » cao hieu
dieu hat » dieu hanh, dieu khac, dieu can
phan le » pham le, phan mem, phan lap
le than » le thanh, le thang, he than
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung luan van hieu suat ) or ( danh phan le than dieu hat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu suat ) OR ( danh phan le than dieu hat ))*.