Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
anh truong » manh truong, anh thuong, anh trong
truong cao » truong dai
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
dan can » dan chan, dan canh, dan ca
can ban » van ban, toan 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 - anh truong cao ((dung cong) or (thong thong)) dan can ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - anh truong cao ((dung cong) OR (thong thong)) dan can ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh truong cao ((dung cong) or (thong thong)) dan can ban*.