Perhaps you should try some spelling variations:
thuoc dang » thuoc dung, thuoc khang, thuoc ban
phap chong » phap phong, phap cong, pham hong
nha thuoc » nha nuoc, nhan thuc, nha hoc
hoc thong » hoc thuong, hoc trong, hoc hong
tham thuc » nham thuc, pham thuc, tam thuc
khoa phap » khoa phau, khoan phai, khong phap
thu sach » thuat sach, thuoc sach, thu hoach
dang hoa » dang hoai, dang khoa, dong hoa
thuc dan » thuc hanh, hoc dan, thuc vat
dan khoa » dang khoa, da khoa, san khoa
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: (( thu sach nha thuoc dang hoa hoc thong ) or ( tu sach tham thuc dan khoa phap chong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach nha thuoc dang hoa hoc thong ) OR ( tu sach tham thuc dan khoa phap chong )).
• Adding a wildcard symbol may retrieve word variants: (( thu sach nha thuoc dang hoa hoc thong ) or ( tu sach tham thuc dan khoa phap chong ))*.