Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
tinh dung » trinh dung, tin dung, tinh quang
hieu suat » hieu luat, hieu qua
kiem soat » kiem toan
van hieu » cao hieu
quan cua » quan luan, ban cua, gian cua
va kiem » van kien
luan » lan

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 van hieu suat ) or ( tinh ((quang tuan) or (quan cua)) va kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu suat ) OR ( tinh ((quang tuan) OR (quan cua)) va kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van hieu suat ) or ( tinh ((quang tuan) or (quan cua)) va kiem soat ))*.