Perhaps you should try some spelling variations:
minh thong » minh thuong, minh tuong, minh thang
tinh dung » trinh dung, tin dung, tinh quang
hieu soat » hieu suat, hieu hoat, hieu luat
hien soan » bien soan, thien toan, dien toan
van hieu » cao hieu
quan van » quan va, quan luan, quan doan
van hien » van tien
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 hieu soat ) or ( minh thong quan van hien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu soat ) OR ( minh thong quan van hien soan )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van hieu soat ) or ( minh thong quan van hien soan ))*.