Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
tham thuoc » pham thuoc, tham thuc, nha thuoc
thuoc sach » hoc sach, nuoc sach, thuat sach
phat thong » phap thong, phan thong, nhat thuong
tri thuoc » tri thuc, tri hoc, tin thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
khoa phau » hoa phan, khoa kham, khoa than
sach tri » sach tai, sach tren, sach truc
ban khoa » san khoa, van khoa, ba khoa
thu sach » thuat sach, thu hoach, khau sach
nha phat » nham phat, phap phat, tnhh phat
tu sach » su sach, te sach, tu cach

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 tri thuoc ban khoa phau thong ) or ( thu sach tham thuoc sach nha phat thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tri thuoc ban khoa phau thong ) OR ( thu sach tham thuoc sach nha phat thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tri thuoc ban khoa phau thong ) or ( thu sach tham thuoc sach nha phat thong ))*.