Perhaps you should try some spelling variations:
minh quang » tinh quang, dinh quang, minh hoang
quang luan » quan luan, quang tuan, quang uan
hieu soat » hieu suat, hieu luat, kiem soat
hieu hoat » hieu hoa, thien hoat, hieu luat
hien soan » bien soan, thien toan, dien toan
van hien » van hieu, van tien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( minh quang luan van ((hieu soat) OR (hieu hoat)) ) or ( tin dung luan van hien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( minh quang luan van ((hieu soat) OR (hieu hoat)) ) OR ( tin dung luan van hien soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( minh quang luan van ((hieu soat) OR (hieu hoat)) ) or ( tin dung luan van hien soan ))".
• Adding a wildcard symbol may retrieve word variants: (( minh quang luan van ((hieu soat) OR (hieu hoat)) ) or ( tin dung luan van hien soan ))*.