Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, theo chu
luat duong » xuat duong, luat huong, luat thuong
duong cong » dung cong, luong cong, duong trong
chao chu » cho chu, cua chu, cao cho
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cao » toan ban, toan tap

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 (chao chu)) sach - hanh trinh luat duong cong tap toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (chao chu)) sach - hanh trinh luat duong cong tap toan cao*.