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
cua thang » cua hang, cua thanh, xua thang
long doan » cong doan, dong doanh, rong doanh
long dan » cong dan, nong dan, long van
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) OR (chieu xanh)) - canh tranh cua thang ((long dan) or (long doan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - canh tranh cua thang ((long dan) OR (long doan)) than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu xanh)) - canh tranh cua thang ((long dan) or (long doan)) than tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu xanh)) - canh tranh cua thang ((long dan) or (long doan)) than tap*.