Perhaps you should try some spelling variations:
than xuong » phan xuong, than uong, thanh huong
thuoc bach » thuoc ban, truc bach, thuoc bang
thuoc sach » hoc sach, nuoc sach, thuat sach
phau thong » phap thong, khau thong, phan thong
bai thuoc » ban thuoc, bai hoc, cay thuoc
bach khoa » anh khoa
khoa than » khoa luan, hoa thai, hoa tan
tai thuoc » tri thuoc, tac thuoc, tao thuoc
sach khoa » sach nha, anh khoa, sinh khoa
khoa phau » hoa phan, khoa kham, khoa thu
sach bai » sach dao, cac bai, sach xa
cach tai » cac tai, cach ta, sach tai
te sach » toc sach
tu cach » tu cac

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

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