Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
bang thanh » ban thanh, dang thanh, tang thanh
hien xanh » hien hanh, hien nhanh, hien khanh
tuan bang » tuan dang, tuan hoang, thuat bang
dong bang » dong san
thanh cau » thanh chau, thanh mau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) OR (chieu xanh)) - thanh trung ((tuan bang) or (tran quang)) dong bang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - thanh trung ((tuan bang) OR (tran quang)) dong bang thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - thanh trung ((tuan bang) or (tran quang)) dong bang thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - thanh trung ((tuan bang) or (tran quang)) dong bang thanh cau*.