Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh tung » thanh cong
tong cong » trong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
tung cua » trung cua, tuong cua, dung cua
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: ho ((chieu sang) or (chieu xanh)) - thanh tung cua ((tong cong) OR (cong cong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - thanh tung cua ((tong cong) OR (cong cong)) dan than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu xanh)) - thanh tung cua ((tong cong) OR (cong cong)) dan than tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - thanh tung cua ((tong cong) OR (cong cong)) dan than tap*.