Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
theo chieu » theo tieu, theo chu, thi chieu
cong thanh » dong thanh, cong trinh, cong tan
thong cua » thong quan, thong tu, huong cua
cua nhung » va nhung
ho chieu » hoc thieu, doi chieu, mot chieu
toan tap » toan 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 (ho chieu)) sach - nhanh thong cua nhung ((huong dan) or (cong thanh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - nhanh thong cua nhung ((huong dan) OR (cong thanh)) toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - nhanh thong cua nhung ((huong dan) or (cong thanh)) toan tap*".