Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cong doanh » cong doan, dong doanh, rong doanh
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong danh » cuong danh, cong dan, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - thanh trung cua ban ((cong doanh) OR (cong danh)) van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - thanh trung cua ban ((cong doanh) OR (cong danh)) van ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung cua ban ((cong doanh) OR (cong danh)) van ban*.