Perhaps you should try some spelling variations:
nguong dan » huong dan
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
nong dan » cong dan, nong san, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - canh tranh cua cong ((nong dan) or (nguong dan)) ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh tranh cua cong ((nong dan) OR (nguong dan)) ((toan cau) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - canh tranh cua cong ((nong dan) or (nguong dan)) ((toan cau) OR (toan ban))*".