Perhaps you should try some spelling variations:
dung lquan » dung luan, dung quan, dung quang
quang tran » quang tuan, quang trung, quang thanh
lquan cao » quang cao, quan cau, quan ao
hieu suat » hieu luat, hieu qua
kiem toan » ke toan, kiem tra
tran van » luan van
van kiem » va kiem, van kien, van hieu

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

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