Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu nhi) or (chieu xanh)) - hanh tranh cua thong thong ((dan toan) OR (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu nhi) OR (chieu xanh)) - hanh tranh cua thong thong ((dan toan) OR (manh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu nhi) or (chieu xanh)) - hanh tranh cua thong thong ((dan toan) OR (manh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu nhi) or (chieu xanh)) - hanh tranh cua thong thong ((dan toan) OR (manh toan)) tap*.