Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
canh sinh » canh binh, tinh sinh, dang sinh
canh tinh » hanh tinh, manh tinh, canh tranh
hang nong » thang long, han tong
nong dan » cong dan, nong san, nguong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chinh sach)) - ((canh sinh) OR (canh tinh)) va hang nong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - ((canh sinh) OR (canh tinh)) va hang nong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chinh sach)) - ((canh sinh) OR (canh tinh)) va hang nong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - ((canh sinh) OR (canh tinh)) va hang nong dan phan cau*.