Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh
chieu sang » chieu sach, hieu lang, nhieu tang
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

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