Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, doanh nhan
thanh toan » thanh hoa, thanh san, tinh toan
dung quan » dung quang, dung luan, luong quan
hieu soat » hieu suat, hieu hoat, hieu luat
tinh quan » tinh quang, trinh quan, tin quan
kiem soat » kiem toan
quan co » quan ao, quan so, quan ho
co hieu » cao hieu, doc hieu

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: (( tin dung quan co hieu soat ) OR ( tinh quan ((thanh nhan) OR (thanh toan)) kiem soat ))~.
• Adding a wildcard symbol may retrieve word variants: (( tin dung quan co hieu soat ) or ( tinh quan ((thanh nhan) or (thanh toan)) kiem soat ))*.