Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh xuat » trinh luat, trinh xuan, trich xuat
xuat trong » xuat truong, xuat thong, luat trong
hoc thieu » toc thieu, hoc hien
ho chieu » theo chieu, doi chieu, mot chieu
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan tap » toan ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) sach - hanh trinh xuat trong cong tap toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) sach - hanh trinh xuat trong cong tap toan tap*.