Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, anh trinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tinh » hanh tinh, manh tinh, canh tranh
lang nong » hang nong, lang dong, lang song
hoc hieu » hoc thieu, hoc hien, doc hieu
vat lang » va lang, van lang, vat mang
nong dan » cong dan, nong san, nguong dan
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - ((canh trinh) or (canh tinh)) vat lang nong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((canh trinh) OR (canh tinh)) vat lang nong dan phan tu*.