Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
trong san » trong cac, cong san, dong san
nong san » cong san, dong san, nong dan
cua dung » cua dang, cua dong, qua dung
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac
san cua » sang cua, ban cua, dan cua

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 xanh) or (chieu xanh)) - nong san cua dung trong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - nong san cua dung trong san than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - nong san cua dung trong san than cap*.