Perhaps you should try some spelling variations:
thanh trung » thanh tung
dang thuong » hang thuong, dung thuong, nang thuong
dong thuong » cong thuong, dong thong, dung thuong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
toan tap » 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 ((chieu xanh) OR (chieu sang)) - thanh trung cua ((dang thuong) or (dong thuong)) tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - thanh trung cua ((dang thuong) OR (dong thuong)) tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - thanh trung cua ((dang thuong) or (dong thuong)) tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - thanh trung cua ((dang thuong) or (dong thuong)) tinh toan tap*.