Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
thuoc hanh » thuoc thanh, thuc hanh, thuoc hinh
phap thong » phap phong, phap chong, pho thong
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
khoa khau » khoa kham, khoa phau, khoa chau
bai thuoc » ban thuoc, bai hoc, cay thuoc
hanh khoa » anh khoa, hanh hoa, han khoa
khoa phap » khoa phau, khoan phai, khong phap
sach bai » sach dao, cac bai, sach xa
bai thuc » bao thuc, dai thuc, loai thuc
so sach » so sanh, bo sach, co sach
cap bai » cac bai, tap bai, cap tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach bai thuc hang khoa khau thong ) or ( so cap bai thuoc hanh khoa phap thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach bai thuc hang khoa khau thong ) OR ( so cap bai thuoc hanh khoa phap thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach bai thuc hang khoa khau thong ) or ( so cap bai thuoc hanh khoa phap thong ))*.