Perhaps you should try some spelling variations:
thanh chuong » thanh huong, thanh cong, nhanh chong
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu quang » thieu quang, hieu quan, hieu qua
chuong cua » chuong chua, huong cua, chung cua
cua nhung » va nhung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cao » toan ban, toan tap

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 (hieu quang)) - thanh chuong cua nhung ((cong tan) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu quang)) - thanh chuong cua nhung ((cong tan) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (hieu quang)) - thanh chuong cua nhung ((cong tan) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu quang)) - thanh chuong cua nhung ((cong tan) OR (cong san)) toan cao*.