Perhaps you should try some spelling variations:
quang luat » quan luan, quang cua, quang tuan
minh cuong » dinh cuong, manh cuong, minh tuong
kiem soat » kiem toan
hieu suat » hieu luat, hieu qua
dat kiem » bat kiem, dat hiem, sat kiem
quan vin » quan van, quang vinh, quang vien
quan vi » quan li, quan tri, quan doi
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 luat dat kiem soat ) or ( minh cuong ((quan vin) or (quan vi)) hieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh quang luat dat kiem soat ) OR ( minh cuong ((quan vin) OR (quan vi)) hieu suat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh quang luat dat kiem soat ) or ( minh cuong ((quan vin) or (quan vi)) hieu suat ))*.