Perhaps you should try some spelling variations:
quang thanh » quan thanh, hoang thanh, muong thanh
hong quang » thong quang, cong quang, hong quan
thanh kiem » thanh liem, khanh kiem, thanh kim
tinh dung » trinh dung, tin dung, tinh quang
hieu suat » hieu luat, hieu qua
dinh hong » dinh huong, dinh hung, dinh thuong
kiem soat » kiem toan
van hieu » cao hieu
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 ( dinh hong quang thanh kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu suat ) OR ( dinh hong quang thanh kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van hieu suat ) or ( dinh hong quang thanh kiem soat ))*.