Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
khang cong » dang cong, phan cong, thong cong
hang cong » dang cong, hang nong, bang cong
cong van » cong vang, cong san, song van
tran cao » toan cao, tran chau, trang cho

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 sang)) - thanh cong van ((khang cong) OR (hang cong)) tan tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - thanh cong van ((khang cong) OR (hang cong)) tan tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sang)) - thanh cong van ((khang cong) OR (hang cong)) tan tran cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sang)) - thanh cong van ((khang cong) OR (hang cong)) tan tran cao*.