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
cua nhung » va nhung
huong van » huong dan, hong van, luong van
duong van » duong va, luong va, dang van
toan cao » toan ban, toan tap

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 manh) or (canh tranh)) cua nhung ((huong van) or (duong van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh manh) OR (canh tranh)) cua nhung ((huong van) OR (duong van)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh manh) or (canh tranh)) cua nhung ((huong van) or (duong van)) toan cao*.