Perhaps you should try some spelling variations:
dung nang » dun nang, dung dang, dung quang
kiem toan » ke toan, kiem tra
tinh dung » tin dung, tinh quang, tinh huong
hieu soat » hieu suat, hieu hoat, hieu luat
dung lam » dung luan, dung tai, dung dat
van hieu » cao hieu
nang va » nang van, hang va, nang ma
va kiem » van kien
lam van » lam san, nam van, dam van

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

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