Perhaps you should try some spelling variations:
thuc doanh » thuc dan, chuc danh, muc doanh
doanh hoai » doanh hoan, doanh ngoai, doanh tai
phau thong » phap thong, khau thong, phan thong
thu thong » thuy thong, thu thang, thu tuong
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phau » hoa phan, khoa kham, khoa than
bai thuc » bai thuoc, bao thuc, dai thuc
hoai thu » doi thu
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
bo sach » co sach, hoc sach
so cac » sao cac, so cap, o cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so cac bai thuc doanh hoai thu thong ) or ( bo sach dao thuc hanh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so cac bai thuc doanh hoai thu thong ) OR ( bo sach dao thuc hanh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( so cac bai thuc doanh hoai thu thong ) or ( bo sach dao thuc hanh khoa phau thong ))*.