Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hang nong » thang long, han tong
dan thanh » dang thanh, danh thanh, ban thanh
manh cua » doanh cua, ban cua
ban quan » van quan
nong dan » cong dan, nong san, nguong dan
thanh tu » hanh tu, nhanh tu, thanh tung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - hanh ((manh cua) or (ban quan)) hang nong dan thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - hanh ((manh cua) OR (ban quan)) hang nong dan thanh tu.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh ((manh cua) or (ban quan)) hang nong dan thanh tu*.