Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
tinh dung » trinh dung, tin dung, tinh quang
hieu luat » hieu qua
quang uan » quang ban, quang tran, quang chan
kiem soat » kiem toan
van hieu » cao hieu
van kiem » va kiem, van kien, van hien
luan » quan, 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 luan van hieu luat ) or ( tinh ((quang uan) OR (quang tuan)) van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan van hieu luat ) OR ( tinh ((quang uan) OR (quang tuan)) van kiem soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tinh dung luan van hieu luat ) or ( tinh ((quang uan) OR (quang tuan)) van kiem soat ))".
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan van hieu luat ) or ( tinh ((quang uan) OR (quang tuan)) van kiem soat ))*.