Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh luat » trinh luat, tranh luan, trinh luan
manh huong » anh huong, manh hung, manh cuong
hien xanh » hien hanh, hien nhanh, hien khanh
luat manh » luat canh, luat danh, luat hanh
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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