Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
cong san » cong tac
san than » sang than, san thanh, ban 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: theo ((chieu xanh) or (chiet tach)) - hanh ((truong cua) OR (truong cao)) nhung cong san than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chiet tach)) - hanh ((truong cua) OR (truong cao)) nhung cong san than tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chiet tach)) - hanh ((truong cua) OR (truong cao)) nhung cong san than tap*".