Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dung doanh » dung dan, dung dong
duong manh » duong van
hoc chieu » hoc thieu, ho chieu, hoc hien
doanh cua » doanh luan
cong manh » cong danh, cong thanh, hoang manh
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 chieu xanh - dung doanh cua cong ((cong manh) or (duong manh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - dung doanh cua cong ((cong manh) OR (duong manh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - dung doanh cua cong ((cong manh) or (duong manh)) toan ban*.