Perhaps you should try some spelling variations:
luong quan » thong quan, duong qua
minh luong » dinh luong, minh tuong, minh cuong
tinh dung » trinh dung, tin dung, tinh quang
hieu suat » hieu luat, hieu qua
hien soat » thien hoat, kiem soat, bien soan
van hieu » cao hieu
quan van » quan va, quan luan, quan doan
van hien » van tien
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: (( tinh dung luan van hieu suat ) or ( minh luong quan van hien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu suat ) OR ( minh luong quan van hien soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van hieu suat ) or ( minh luong quan van hien soat ))*.