Perhaps you should try some spelling variations:
tinh luong » tinh huong, dinh luong, minh luong
luong quan » thong quan, duong qua
tinh thong » tinh thuong, trinh thong, tinh khong
luan hieu » luan tieu, luan dieu, luan thiet
hieu soat » hieu suat, hieu hoat, hieu luat
kiem soat » kiem toan
quan va » quan vi, luan va, quan ve
quan ha » quan he

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

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