Perhaps you should try some spelling variations:
tinh thuong » trinh thuong, tinh huong, dinh thuong
tinh dung » trinh dung, tin dung, tinh quang
kiem soat » kiem toan
hien soat » thien hoat, bien soan, hien luat
van kiem » va kiem, van kien, van hieu
quan va » quan vi, quan ha, luan va
va hien » van hien, va lien, va dien
luan » lan

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

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