Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
nang hang » nang sang, hang hang, cang thang
cua nhung » va nhung
hang cua » mang cua, hang ca, huong cua
cong san » cong tac
than cao » thai cao, than cap, than sao
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) or (chieu sang)) - nang hang cua nhung cong san ((than cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chieu sang)) - nang hang cua nhung cong san ((than cao) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chieu sang)) - nang hang cua nhung cong san ((than cao) OR (toan cao))*".