Perhaps you should try some spelling variations:
nhanh muong » nhanh chuong, nhanh quang, nhanh chong
muong thanh » truong thanh, dong thanh, cong thanh
thanh thong » thanh thuong, thanh hong, thanh thang
theo chieu » theo tieu, theo chu, thi chieu
thong cong » trong cong, tong cong, thong thong
ho chieu » hoc thieu, doi chieu, mot chieu
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
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: ((ho chieu) OR (theo chieu)) sach - nhanh muong thanh thong cong tap toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - nhanh muong thanh thong cong tap toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - nhanh muong thanh thong cong tap toan cau*.