Perhaps you should try some spelling variations:
dang quang » dung quang, nang quan, dang hung
hieu luat » hieu qua
tinh dang » tinh dung, binh dang, tinh sang
quang van » quang ban, quan van, quang uan
hien soat » thien hoat, bien soan, hien luat
kiem soat » kiem toan
luan cao » juan cao, luan bao, quang cao

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

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