Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu manh)) - thanh trung cua nhung ((cong dan) OR (cong san)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu manh)) - thanh trung cua nhung ((cong dan) OR (cong san)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu manh)) - thanh trung cua nhung ((cong dan) OR (cong san)) van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu manh)) - thanh trung cua nhung ((cong dan) OR (cong san)) van ban*.