Perhaps you should try some spelling variations:
quang tran » quang tuan, quang trung, quang thanh
tinh dung » trinh dung, tin dung, tinh huong
dieu suat » hieu suat, trieu suat, hieu luat
kiem soat » kiem toan
luan va » luan van, luat va
tran va » tran van, trang va, tranh va
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 luan va dieu suat ) or ( tinh quang tran va kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan va dieu suat ) OR ( tinh quang tran va kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan va dieu suat ) or ( tinh quang tran va kiem soat ))*.