Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh nong » thanh cong, thanh long, thanh hong
tranh van » tran van, trinh van, thanh van
van thanh » ban thanh, van tuan
dan khoan » dan khoa, dai khoang, toan khoan
khoan cam » khoa cam, khoan va, phan cam
nong dan » cong dan, nong san, nguong dan

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 - canh tranh van thanh nong dan khoan cam~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh van thanh nong dan khoan cam*.