Perhaps you should try some spelling variations:
tham thuoc » pham thuoc, tham thuc, nha thuoc
than tuong » than thuong, thay tuong, nhan tuong
sach tham » sach nha
thuoc anh » thuoc thanh, thuoc dang, thuoc sach
pho thong » he thong
cach khoa » bach khoa, cac khoa, cac khoan
khoa than » khoa luan, hoa thai, hoa tan
anh khoa » doanh khoa, hang khoa
khoa pho » khoa phu, khoa khoa, khoa phau
cuc cach » cuoc cach, cac cach, cuu cach
tu sach » thu sach, su sach, te sach
cac tai » cao tai, cac bai, cac dai

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 tham thuoc anh khoa pho thong ) or ( tu cac tai cuc cach khoa than tuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tham thuoc anh khoa pho thong ) OR ( tu cac tai cuc cach khoa than tuong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tham thuoc anh khoa pho thong ) or ( tu cac tai cuc cach khoa than tuong ))*.