Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, cach mang, van manh
chua bang » chu bang, chua nang, chua xang
bang song » nang song
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan

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

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