Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
khang cong » hang cong, phan cong, thong cong
dang cong » dung cong
cong san » cong tac
tan toan » tan tran, tap toan, van toan
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: doi ((chieu xanh) or (chieu sach)) - thanh cong san ((khang cong) OR (dang cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - thanh cong san ((khang cong) OR (dang cong)) tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sach)) - thanh cong san ((khang cong) OR (dang cong)) tan toan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - thanh cong san ((khang cong) OR (dang cong)) tan toan cao*.