Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
hien xanh » hien hanh, hien nhanh, chieu xanh
tuong van » truong van, trong van, duong van
dung cua » dung luan, dung cho
van toan » van tuan, van tan, van thanh
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 hien xanh - hanh ((dung cua) or (ban cua)) nhung tuong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((dung cua) OR (ban cua)) nhung tuong van toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((dung cua) or (ban cua)) nhung tuong van toan cau*.