Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thong cung » thong cong, thong dung, thong vung
tao thong » tao trong, giao thong, toan thong
ho chieu » hoc thieu, doi chieu, mot chieu
cong tao » cong tac, cong tan, cong bao
cung bai » cuong bai, dung bai, nhung bai
bai toan » bai tap
toan cau » 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 (ho chieu)) sach - thanh cong tao thong cung bai toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - thanh cong tao thong cung bai toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - thanh cong tao thong cung bai toan cau*.