Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hang nong » thang long, han tong
nong dan » cong dan, nong san, nguong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
luan » quan, lan

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)) - hanh ((tran van) or (luan van)) hang nong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh ((tran van) OR (luan van)) hang nong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - hanh ((tran van) or (luan van)) hang nong dan toan tap*.