Perhaps you should try some spelling variations:
dung quan » dung quang, dung luan, luong quan
hieu luat » hieu qua
kiem soat » kiem toan
luan cao » juan cao, quang cao, luan chat
luan bao » luat bao, luan ban, xuan bao
quan hai » quan ha, qua hai, quan tai
hai kiem » hai diem, hai kien, hoi kiem

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

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