Perhaps you should try some spelling variations:
tinh dung » trinh dung, tin dung, tinh huong
kiem toan » ke toan, kiem tra
quang uan » quang tuan, quang ban, quang tran
hieu soat » hieu suat, hieu hoat, hieu luat
van hieu » cao hieu
luan va » luan van, luat va
va kiem » van kien
uan van » luan van, quan van, tan van

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 kiem toan ) or ( tinh quang uan van hieu soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan va kiem toan ) OR ( tinh quang uan van hieu soat ))*.