Perhaps you should try some spelling variations:
minh thong » minh thuong, minh tuong, minh thang
tinh dung » trinh dung, tinh quang, tinh huong
hieu soat » hieu suat, hieu hoat, hieu luat
bien soan » bien so
van hieu » cao hieu
quan van » quan va, quan luan, quan doan
van bien » van tien, van hien, vat bien
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) OR (tin dung)) luan van hieu soat ) or ( minh thong quan van bien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tinh dung) OR (tin dung)) luan van hieu soat ) OR ( minh thong quan van bien soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((tinh dung) OR (tin dung)) luan van hieu soat ) or ( minh thong quan van bien soan ))".
• Adding a wildcard symbol may retrieve word variants: (( ((tinh dung) OR (tin dung)) luan van hieu soat ) or ( minh thong quan van bien soan ))*.