Perhaps you should try some spelling variations:
quang thanh » quan thanh, hoang thanh, muong thanh
minh quang » tinh quang, dinh quang, minh hoang
quang luan » quan luan, quang tuan, quang uan
hien soat » thien hoat, hien luat, dien hoat
kiem soat » kiem toan
thanh vat » thanh van, thanh dat, thanh va
bien soan » bien so
vat bien » vat lieu, cam bien

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 ((hien soat) OR (kiem soat)) ) or ( minh quang thanh vat bien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( minh quang luan van ((hien soat) OR (kiem soat)) ) OR ( minh quang thanh vat bien soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( minh quang luan van ((hien soat) OR (kiem soat)) ) or ( minh quang thanh vat bien soan ))".
• Adding a wildcard symbol may retrieve word variants: (( minh quang luan van ((hien soat) OR (kiem soat)) ) or ( minh quang thanh vat bien soan ))*.