Perhaps you should try some spelling variations:
luong quan » duong qua
tinh thong » tinh thuong, trinh thong, tinh khong
quan doan » quan hoang, chuan doan, chan doan
doan hieu » doanh hieu, doan dieu, doan thien
hieu soat » hieu suat, hieu hoat, hieu luat
kiem soat » kiem toan
quan va » quan vi, quan ha, luan va
va kiem » van kien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (tien OR bien) luong quan doan hieu soat ) or ( tinh thong quan va kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (tien OR bien) luong quan doan hieu soat ) OR ( tinh thong quan va kiem soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (tien OR bien) luong quan doan hieu soat ) or ( tinh thong quan va kiem soat ))".
• Adding a wildcard symbol may retrieve word variants: (( (tien OR bien) luong quan doan hieu soat ) or ( tinh thong quan va kiem soat ))*.