Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban

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