Perhaps you should try some spelling variations:
tinh huong » dinh huong, anh huong
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, 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: (( ((tinh huong) OR (tinh quang)) quan luan hieu soat ) or ( tinh thong quan va kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tinh huong) OR (tinh quang)) quan luan hieu soat ) OR ( tinh thong quan va kiem soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((tinh huong) OR (tinh quang)) quan luan hieu soat ) or ( tinh thong quan va kiem soat ))".
• Adding a wildcard symbol may retrieve word variants: (( ((tinh huong) OR (tinh quang)) quan luan hieu soat ) or ( tinh thong quan va kiem soat ))*.