Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
tranh cua » doanh cua, manh cua
dung cong » dung trong
chu sang » chu bang, thu sang, chuc nang
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sang) OR (chieu sang)) - canh tranh cua dung cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sang) OR (chieu sang)) - canh tranh cua dung cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sang) OR (chieu sang)) - canh tranh cua dung cong dan than cap*.