Perhaps you should try some spelling variations:
trinh thong » trinh thuong, trinh trong, trinh tong
tinh thong » tinh thuong, tinh khong, dinh thong
luong quan » thong quan, duong qua
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
tien » tieng, bien, vien

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

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