Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
hanh truong » hanh trong, anh truong, manh truong
theo chieu » ho chieu, theo chu, thi chieu
truong cao » truong dai
duong manh » duong van
cao nhung » cho nhung, cam nhung, cao chung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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) or (theo tieu)) sach - hanh truong cao nhung duong manh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - hanh truong cao nhung duong manh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - hanh truong cao nhung duong manh ((toan cau) or (toan ban))*.