Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
nhung huong » nhung tuong, nhung cong, nhung dung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhan dang » nhan dan, phan dang, tran dang
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
dang va » dang van, dang vat, hang va

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 - nhan dang va ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - nhan dang va ((nhung huong) OR (nhung phuong)) dan ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - nhan dang va ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - nhan dang va ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan ban))*.