Perhaps you should try some spelling variations:
tinh thong » tinh thuong, trinh thong, tinh khong
quan doanh » quan doan, nhuan doanh, quan hoang
doanh vien » doanh tien, doanh chien, thanh vien
tinh dung » trinh dung, tin dung, tinh quang
vien soan » bien soan, vien quan, vien sau
quan va » quan vi, quan ha, luan va
luan » lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung ((luan van) or (quan va)) hieu qua ) or ( tinh thong quan doanh vien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung ((luan van) OR (quan va)) hieu qua ) OR ( tinh thong quan doanh vien soan )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung ((luan van) or (quan va)) hieu qua ) or ( tinh thong quan doanh vien soan ))*.