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
thanh tran » thanh trang, thanh toan, thanh tra
tran van » luan van
toan cao » toan tap
toan ban » van ban

You may be able to get more results by adjusting your search query.

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