Perhaps you should try some spelling variations:
cang trang » cang thang, vang trang, hoang trang
nhung cong » thong cong, hang cong, nhung don
hoa chinh » hoan chinh, hoa hinh, hoc chinh
dung cong » dung trong
trang va » tran van, hang va
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoa chinh sach - cang trang va ((nhung cong) or (dung cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoa chinh sach - cang trang va ((nhung cong) OR (dung cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoa chinh sach - cang trang va ((nhung cong) or (dung cong)) dan toan cao*.