Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
cho chinh » chon chinh, che chinh, cuoc chinh
hang cong » dang cong, hang nong, bang cong
vang toan » van toan, dang toan, quang toan
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
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: cho chinh sach - anh tang cua ((nhung cong) or (hang cong)) vang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chinh sach - anh tang cua ((nhung cong) OR (hang cong)) vang toan cao.
• Adding a wildcard symbol may retrieve word variants: cho chinh sach - anh tang cua ((nhung cong) or (hang cong)) vang toan cao*.