Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, hien khanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 xanh) or (((chieu xanh) OR (chieu sach)))) - hanh tranh cua nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (((chieu xanh) OR (chieu sach)))) - hanh tranh cua nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (((chieu xanh) OR (chieu sach)))) - hanh tranh cua nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (((chieu xanh) OR (chieu sach)))) - hanh tranh cua nhung cong dan toan cao*.