Perhaps you should try some spelling variations:
nhung phong » nhung phuong, nhung chong, nung phong
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua nhung » va nhung
phong van » phung van, thong van, phong va
sinh cua » manh cua, dinh cuu, sinh va
van toan » van tuan, van tan, van thanh
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 ((hien xanh) or (chieu xanh)) - hanh sinh cua nhung phong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh sinh cua nhung phong van toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - hanh sinh cua nhung phong van toan ban*.