Perhaps you should try some spelling variations:
tham thuoc » pham thuoc, tham thuc, nha thuoc
thuoc dang » thuoc dung, thuoc khang, thuc dan
tren thuoc » trien thuoc, tren thuc, trung thuoc
thuoc sinh » hoc sinh, thu sinh, thuoc sach
sach tham » sach nha
dang khoa » dung khoa, hang khoa, dang khoi
khoa khau » khoa kham, khoa phau, khoa chau
khau tong » khau thong, khau cong, khau thuong
sach tren » sach tien, sach tranh
phan hong » phan cong, pham hong, phan song
sinh hoa » sinh hoat, sinh khoa, sinh hoc
hoa phan » hoa dan, co phan
tu sach » thu sach, su sach, te 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 tham thuoc dang khoa khau tong ) or ( tu sach tren thuoc sinh hoa phan hong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tham thuoc dang khoa khau tong ) OR ( tu sach tren thuoc sinh hoa phan hong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tham thuoc dang khoa khau tong ) or ( tu sach tren thuoc sinh hoa phan hong ))*.