Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nong thong » nong thon, dong thong, cong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
thong van » trong van, thong va, thong quan
cua nong » cua cong, cuu nong, cua dong
nhan tai » hang tai, van tai, toan tai
han tap » han tai, toan tap, nhan tao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((canh tranh) OR (hanh chinh)) cua nong thong van ((han tap) OR (nhan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - ((canh tranh) or (hanh chinh)) cua nong thong van ((han tap) OR (nhan tai))~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((canh tranh) or (hanh chinh)) cua nong thong van ((han tap) OR (nhan tai))*.