Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
quang ban » quang binh, quang tran, qua ban
dien hoat » dien hoa, dien hat, trien hoat
kiem soat » kiem toan
va dien » va dieu, va lien, mai dien
luan va » luan van, luat va
va kiem » van kien
tinh » dinh, minh, kinh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh ((quang ban) OR (quang tuan)) va dien hoat ) OR ( trinh dung luan va kiem soat ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh ((quang ban) OR (quang tuan)) va dien hoat ) or ( trinh dung luan va kiem soat ))~".
• Adding a wildcard symbol may retrieve word variants: (( tinh ((quang ban) OR (quang tuan)) va dien hoat ) or ( trinh dung luan va kiem soat ))*.