Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
thuoc sach » hoc sach, nuoc sach, thuat sach
bai thuoc » ban thuoc, bai hoc, cay thuoc
sach khoa » bach khoa, sach nha, anh khoa
khoa phau » hoa phan, khoa kham, khoa than
pham thuc » phap thuc, pham chuc, nham thuc
thuc cach » truoc cach, thuc hanh, tuc cac
phan tong » phan trong, phan cong, han tong
sach bai » sach dao, cac bai, sach xa
toc pham » tac pham, toc cham, toi pham
tu sach » thu sach, su sach, te sach
cach co » cach con, cac co, cach noi
tu toc » tu hoc, tu goc, tu tot

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 phau thong ) or ( tu toc pham thuc cach co phan tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach bai thuoc sach khoa phau thong ) OR ( tu toc pham thuc cach co phan tong ))*.