Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh manh » lanh manh, canh tranh, cach mang
chua dong » cua dong, ha dong, huy dong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san toan » van toan, dan toan, 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) or (thi thanh)) - canh manh ((cua dung) or (chua dong)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thi thanh)) - canh manh ((cua dung) OR (chua dong)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thi thanh)) - canh manh ((cua dung) or (chua dong)) cong san toan ban*.