Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
minh cuong » dinh cuong, manh cuong, minh tuong
cuong quan » luong quan, vuong quan, luong quang
hieu soat » hieu hoat, hieu luat, hieu so
hieu suat » hieu luat, hieu qua
kiem soat » kiem toan
tuan van » luan van, tran van, tan van
quan doi » quan tri, quan li
doi kiem » hoi kiem, doi kien, thi kiem
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 tuan van ((hieu soat) or (hieu suat)) ) or ( minh cuong quan doi kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh quang tuan van ((hieu soat) OR (hieu suat)) ) OR ( minh cuong quan doi kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh quang tuan van ((hieu soat) or (hieu suat)) ) or ( minh cuong quan doi kiem soat ))*.