Perhaps you should try some spelling variations:
ganh nang » anh nang, nganh nong, van nang
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
ho chinh » hoc chinh, cho chinh, hoa chinh
anh tang » anh bang, anh dang, anh nang
van toan » van tuan, van tan, van thanh
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: ho chinh sach - ((anh tang) or (ganh nang)) cua ((tong cong) or (dung cong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - ((anh tang) OR (ganh nang)) cua ((tong cong) OR (dung cong)) van toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - ((anh tang) or (ganh nang)) cua ((tong cong) or (dung cong)) van toan cao*.