Perhaps you should try some spelling variations:
minh duong » dinh duong, binh duong, minh tuong
tinh dung » trinh dung, tin dung, tinh quang
hieu soat » hieu hoat, hieu luat, hieu so
hieu suat » hieu luat, hieu qua
kiem soat » kiem toan
doi kiem » hoi kiem, doi kien, thi kiem
qua doi » quan doi, qua loi, sua doi
luan » quan, 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 soat) or (hieu suat)) ) or ( minh duong qua doi kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van ((hieu soat) OR (hieu suat)) ) OR ( minh duong qua doi kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van ((hieu soat) or (hieu suat)) ) or ( minh duong qua doi kiem soat ))*.