Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
dung huong » dung thuong, dung phuong, dong huong
trung ap » trung cap, trung lap, trung tam
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than
ap dung » xay dung, van dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (nhieu tang)) - thanh trung ap dung huong ((dan toan) OR (dan than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (nhieu tang)) - thanh trung ap dung huong ((dan toan) OR (dan than)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (nhieu tang)) - thanh trung ap dung huong ((dan toan) OR (dan than)) cau*.