Perhaps you should try some spelling variations:
dinh quan » dinh quang, dinh xuan, dinh duan
hieu luat » hieu qua
tinh nang » trinh nang, tin nang, tich nang
nang quan » ban quan, nang suat
kiem soat » kiem toan
van hieu » cao hieu
quan van » luan van, quan va, quan luan
van kiem » va kiem, van kien, van hien
tri van » thi van, tri va, trinh van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( dinh quan tri van hieu luat ) OR ( tinh nang quan van kiem soat ))~".
• Adding a wildcard symbol may retrieve word variants: (( dinh quan tri van hieu luat ) OR ( tinh nang quan van kiem soat ))*.