Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang nong » thang long, han tong
cua hang » cua dang, cua nhung, cua cong
nong dan » cong dan, nong san, nguong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu nhi) or (chieu xanh)) - hanh tranh cua hang nong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu nhi) OR (chieu xanh)) - hanh tranh cua hang nong dan than cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu nhi) or (chieu xanh)) - hanh tranh cua hang nong dan than cao*.