Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong cao » truong dai
dung cong » dung trong
hang cong » dang cong, hang nong, bang cong
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) OR (chieu tinh)) - thanh truong cao ((dung cong) or (hang cong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu tinh)) - thanh truong cao ((dung cong) OR (hang cong)) dan than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu tinh)) - thanh truong cao ((dung cong) or (hang cong)) dan than tap".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu tinh)) - thanh truong cao ((dung cong) or (hang cong)) dan than tap*.