Perhaps you should try some spelling variations:
minh luong » dinh luong, minh tuong, minh cuong
luong quan » thong quan, duong qua
tinh dung » trinh dung, tin dung, tinh quang
hieu soat » hieu suat, hieu hoat, hieu luat
lien soat » kiem soat, bien soan, dien hoat
van hieu » cao hieu
quan doi » quan tri, quan li
lien son » bien soan, bien so, lieu lon

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 OR lan) van hieu soat ) or ( minh luong quan doi ((lien soat) or (lien son)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung (luan OR lan) van hieu soat ) OR ( minh luong quan doi ((lien soat) OR (lien son)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh dung (luan OR lan) van hieu soat ) or ( minh luong quan doi ((lien soat) or (lien son)) ))".
• Adding a wildcard symbol may retrieve word variants: (( tinh dung (luan OR lan) van hieu soat ) or ( minh luong quan doi ((lien soat) or (lien son)) ))*.