Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong cua » cong cu, dong cua, huong cua
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than dau » phan dau, thau dau, han dau

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 (chieu sang)) - thanh cong cua thong cong tan than dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - thanh cong cua thong cong tan than dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - thanh cong cua thong cong tan than dau*.