Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
doanh cua » doanh luan
hanh va » hang va, hanh vi
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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 - canh ((hanh va) or (doanh cua)) nhung huong dan can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh ((hanh va) OR (doanh cua)) nhung huong dan can cau*.