Perhaps you should try some spelling variations:
dung quang » dang quang, dung quan, luong quang
minh luong » dinh luong, minh tuong, minh cuong
luong luan » luong quan, luong xuan, cuong luan
tinh dung » trinh dung, tin dung, tinh quang
kiem soat » kiem toan
hieu soat » hieu hoat, hieu luat, hieu so
hieu suat » hieu luat, hieu qua
quang va » quang van, quan va, quang ma
va kiem » van kien

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 quang va kiem soat ) or ( minh luong luan van ((hieu soat) or (hieu suat)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung quang va kiem soat ) OR ( minh luong luan van ((hieu soat) OR (hieu suat)) )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung quang va kiem soat ) or ( minh luong luan van ((hieu soat) or (hieu suat)) ))*.