Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
cua nhung » va nhung
hanh ban » thanh ban, hang ban, hanh san
hong van » hoang van, thong van, phong van
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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)) - hanh ban cua nhung ((hong van) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh ban cua nhung ((hong van) OR (huong dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - hanh ban cua nhung ((hong van) or (huong dan)) toan cau*.