Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
dung cong » dung trong
ban than » ban thanh, van thanh, ban hang
vat dung » van dung, va dung, viet dung
cong tan » cong tac, cong san, cong thanh
tan toan » tap toan, van toan, dan 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: ho ((chieu sang) OR (chieu xanh)) - ((tan tran) or (ban than)) vat dung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - ((tan tran) OR (ban than)) vat dung cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - ((tan tran) or (ban than)) vat dung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - ((tan tran) or (ban than)) vat dung cong tan toan cao*.