Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
cong tang » cong thang, cong lang, cong vang
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
va dung » van dung, va duong, vat dung

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 - canh tranh va dung ((cong tan) or (cong tang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh tranh va dung ((cong tan) OR (cong tang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh tranh va dung ((cong tan) or (cong tang)) toan ban*.