Perhaps you should try some spelling variations:
trinh phuong » trinh duong, trinh dung, trinh cong
phuong qua » phuong quang, duong qua, thong qua
tinh nang » trinh nang, tin nang, tich nang
nang quan » ban quan, nang suat
quan tran » quang tran, quan tren, xuan tran
tran kiem » toan kiem, trang kien, trinh kiem
kiem soat » kiem toan
van kiem » van kien, van hieu, van hien
va kiem » van kien

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 nang quan tran kiem soat ) OR ( trinh phuong qua ((van kiem) OR (va kiem)) soat ))~.
• Adding a wildcard symbol may retrieve word variants: (( tinh nang quan tran kiem soat ) or ( trinh phuong qua ((van kiem) or (va kiem)) soat ))*.