Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
cua hang » cua nhung, cua cong, cua ban
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu xanh)) - canh tranh ((cua hang) OR (cua dang)) cong dan than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu xanh)) - canh tranh ((cua hang) OR (cua dang)) cong dan than tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu xanh)) - canh tranh ((cua hang) OR (cua dang)) cong dan than tap*.