Perhaps you should try some spelling variations:
trinh cong » trinh dung
minh cuong » dinh cuong, manh cuong, minh tuong
hien soan » bien soan, thien toan, dien toan
tinh quan » tinh quang, trinh quan, tin quan
hieu soat » hieu suat, hieu hoat, hieu luat
van hien » van tien
van hieu » cao hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((trinh cong) or (minh cuong)) luan van hien soan ) or ( tinh quan luan van hieu soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((trinh cong) OR (minh cuong)) luan van hien soan ) OR ( tinh quan luan van hieu soat )).
• Adding a wildcard symbol may retrieve word variants: (( ((trinh cong) or (minh cuong)) luan van hien soan ) or ( tinh quan luan van hieu soat ))*.