Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh huong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 hieu manh - ((thanh truong) OR (((thanh tung) OR (thanh cong)))) cua thong cong dan than cap~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((thanh truong) or (((thanh tung) or (thanh cong)))) cua thong cong dan than cap*.