Perhaps you should try some spelling variations:
phai thong » phap thong, phai tuong, phan thong
tham thuoc » pham thuoc, tham thuc, nha thuoc
thuoc sach » hoc sach, nuoc sach, thuat sach
sach chong » sach thuong, sach song, tac chong
chong phap » phuong phap
sach tien » sach tren, sach thieu
tien thuc » trien thuc, kien thuc, bien thuc
thuc bach » truc bach, thuc cach, thuc hanh
cach tham » sach tham, cach thuc, cach pha
phap cong » phan cong, pham cong, phap phong
bach hoa » bach khoa, bach ha, cach hoan
hoa phai » hoa phan, hoa thai, hoa phi
su sach » so sach, vu sach
tu cach » tu cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach tien thuc bach hoa phai thong ) or ( tu cach tham thuoc sach chong phap cong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tien thuc bach hoa phai thong ) OR ( tu cach tham thuoc sach chong phap cong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tien thuc bach hoa phai thong ) or ( tu cach tham thuoc sach chong phap cong ))*.