Perhaps you should try some spelling variations:
minh luong » dinh luong, minh tuong, minh cuong
quang luan » quan luan, quang tuan, quang uan
luong quan » thong quan, duong qua
hieu soat » hieu hoat, hieu luat, kiem soat
hieu suat » hieu luat, hieu qua
lien soat » kiem soat, bien soan, lien son
quan doi » quan tri, quan li
doi lien » 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 suat)) ) or ( minh luong quan doi lien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh quang luan van ((hieu soat) OR (hieu suat)) ) OR ( minh luong quan doi lien soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh quang luan van ((hieu soat) OR (hieu suat)) ) or ( minh luong quan doi lien soat ))".
• Adding a wildcard symbol may retrieve word variants: (( tinh quang luan van ((hieu soat) OR (hieu suat)) ) or ( minh luong quan doi lien soat ))*.