Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
dung ung » dung cong
dan toan » van toan, dan than, 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 (hieu manh)) - canh manh cua ((dung trong) or (dung ung)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - canh manh cua ((dung trong) OR (dung ung)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - canh manh cua ((dung trong) or (dung ung)) dan toan ban*.