Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
duong manh » duong van
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
ho chiet » ho chieu, ho thiet, hoc thiet
toan cao » toan ban
toan tap » toan 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: ho chiet tach - hanh trinh cua nhung duong manh ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh trinh cua nhung duong manh ((toan cao) or (toan tap))*.