Perhaps you should try some spelling variations:
vien nganh » vien thanh
nhung cong » dung cong, thong cong, hang cong
hiem ngan » viem gan
thanh tra » thanh toan, thanh hoa
van nhung » van nhuong, va nhung, van hung
kim ngan » kim ngoc
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
tra van » tran van, ta van, trang van

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: hoc ((vien nganh) OR (((hiem ngan) OR (kim ngan)))) - thanh tra van nhung cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((vien nganh) or (((hiem ngan) OR (kim ngan)))) - thanh tra van nhung cong dan than cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((vien nganh) or (((hiem ngan) OR (kim ngan)))) - thanh tra van nhung cong dan than cao*.