Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tranh luat » trinh luat, tranh luan, trinh luan
canh huong » anh huong, manh huong, thanh huong
canh duong » anh duong, thanh duong, anh huong
hoc thieu » toc thieu, hoc hien
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 thieu xanh - canh tranh luat ((canh huong) or (canh duong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh luat ((canh huong) OR (canh duong)) dan toan ban*.