Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
phuong dan » phuong danh, phuong doan, huong dan
hien xanh » hien hanh, hien nhanh, hien khanh
hanh tang » hanh trang, anh tang, hanh mang
cua doanh » luat doanh, cua dang, cua dan
cua doan » cua dan, cua toan, chuan doan
dan toan » van toan, dan than, manh toan
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 ((hien xanh) OR (chieu xanh)) - hanh tang ((cua doan) or (cua doanh)) phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh tang ((cua doan) OR (cua doanh)) phuong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - hanh tang ((cua doan) or (cua doanh)) phuong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - hanh tang ((cua doan) or (cua doanh)) phuong dan toan ban*.