Perhaps you should try some spelling variations:
minh quang » tinh quang, dinh quang, minh hoang
quang luan » quan luan, quang tuan, quang uan
hieu soat » hieu suat, hieu hoat, hieu luat
quang van » quang ban, quan van, quang uan
kiem soat » kiem toan
van hieu » cao hieu
quan ha » quan he

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( minh quang luan van hieu soat ) or ( trinh dung ((quang van) or (quan ha)) kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( minh quang luan van hieu soat ) OR ( trinh dung ((quang van) OR (quan ha)) kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( minh quang luan van hieu soat ) or ( trinh dung ((quang van) or (quan ha)) kiem soat ))*.