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
kien soat » kiem soat, bien soan, kien hoa
quan doi » quan tri, quan li
doi kien » doi dien, doi bien, doi hien
tinh » trinh, dinh, kinh

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

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