Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
chong van » thong van, hong van, phong van
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap
sinh va » sinh vat, tinh va, dinh van

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 (hien hanh)) - hanh sinh va nhung chong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - hanh sinh va nhung chong van toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - hanh sinh va nhung chong van toan cau*.