Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
tuong van » truong van, trong van, duong van
tinh cua » trinh cua, sinh cua, tinh chat
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: theo chieu xanh - hanh ((tinh cua) or (trinh luat)) nhung tuong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ((tinh cua) OR (trinh luat)) nhung tuong van toan ban*.