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 sach » chinh sach, chiet tach, chieu sang
nhan dang » nhan dan, phan dang, tran dang
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
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 sach - nhan dang va ((nhung huong) or (nhung phuong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhan dang va ((nhung huong) OR (nhung phuong)) dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhan dang va ((nhung huong) or (nhung phuong)) dan toan cau*.