Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hang cong » dang cong, hang nong, thong cong
bang cong » dang cong, bang song, dung cong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
cong yu » cong cu, cong tu, cong su

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 (chieu xanh)) - thanh cong yu ((hang cong) or (bang cong)) ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - thanh cong yu ((hang cong) OR (bang cong)) ban thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - thanh cong yu ((hang cong) or (bang cong)) ban thanh lap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - thanh cong yu ((hang cong) or (bang cong)) ban thanh lap*.