Perhaps you should try some spelling variations:
nhanh muong » nhanh chuong, nhanh quang, nhanh chong
muong thanh » truong thanh, dong thanh, cong thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tong » thanh cong, thanh tung, thanh long
tong cong » trong cong, cong cong, dung cong
tan toan » tap toan, van toan, dan toan

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: "theo chieu sach - nhanh muong thanh tong cong ((tan toan) OR (tan tran)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhanh muong thanh tong cong ((tan toan) OR (tan tran)) cau*.