Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
truong cao » truong dai
truong cua » truong ca, truong quan, huong cua
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong tap » cuong tap, cong tac, cong tan
toan cao » toan tap
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 - thanh ((truong cao) or (truong cua)) dung cong tap ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong cao) OR (truong cua)) dung cong tap ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong cao) or (truong cua)) dung cong tap ((toan cao) or (toan ban))*.