Perhaps you should try some spelling variations:
cang thang » dang thanh
cong thanh » dong thanh, cong trinh, truong thanh
hang hang » nang hang, hung thang, lang thang
ho chinh » hoc chinh, cho chinh, hoa chinh
va duong » van duong, va tuong, va huong
cong tan » cong tac, cong san, cong ty
tran ban » tranh ban, tran van, toan ban

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 - ((hang hang) or (cang thang)) va duong ((cong tan) OR (cong thanh)) tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - ((hang hang) OR (cang thang)) va duong ((cong tan) OR (cong thanh)) tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - ((hang hang) or (cang thang)) va duong ((cong tan) OR (cong thanh)) tran ban".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - ((hang hang) or (cang thang)) va duong ((cong tan) OR (cong thanh)) tran ban*.