Perhaps you should try some spelling variations:
quang quan » quang tuan, quang uan, quan quan
tinh dung » trinh dung, tin dung, tinh huong
kiem soat » kiem toan
hieu soat » hieu suat, hieu hoat, hieu so
hieu luat » hieu qua
van kiem » va kiem, van kien, van hieu
quan van » quan va, quan luan, quan doan
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 kiem soat ) or ( tinh quang quan van ((hieu soat) or (hieu luat)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van kiem soat ) OR ( tinh quang quan van ((hieu soat) OR (hieu luat)) )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van kiem soat ) or ( tinh quang quan van ((hieu soat) or (hieu luat)) ))*.