Perhaps you should try some spelling variations:
than xuong » phan xuong, than uong, thanh huong
thuoc sach » hoc sach, nuoc sach, thuat sach
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
phau thong » phap thong, khau thong, phan thong
bai thuoc » ban thuoc, bai hoc, cay thuoc
sach khoa » bach khoa, sach nha, anh khoa
khoa than » khoa luan, hoa thai, hoa tan
khoa phau » hoa phan, khoa kham, khoa thu
sach bai » sach dao, cac bai, sach xa
sach dan » sach danh, sach dao, sach dat
dan thuc » dan toc, am thuc
tu sach » thu sach, su sach, tu cach
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach bai thuoc sach khoa than xuong ) or ( te sach dan thuc doanh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach bai thuoc sach khoa than xuong ) OR ( te sach dan thuc doanh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach bai thuoc sach khoa than xuong ) or ( te sach dan thuc doanh khoa phau thong ))*.