Perhaps you should try some spelling variations:
quang luan » quan luan, quang tuan, quang uan
minh luong » dinh luong, minh tuong, minh cuong
luong quan » thong quan, duong qua
hieu soat » hieu suat, hieu hoat, hieu luat
bien soat » bien soan, kiem soat, bien so
van hieu » cao hieu
quan doi » quan tri, quan li
doi bien » doi dien, voi bien, doi hien
tinh » trinh, dinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (tinh or kinh) quang luan van hieu soat ) or ( minh luong quan doi bien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (tinh OR kinh) quang luan van hieu soat ) OR ( minh luong quan doi bien soat )).
• Adding a wildcard symbol may retrieve word variants: (( (tinh or kinh) quang luan van hieu soat ) or ( minh luong quan doi bien soat ))*.