Perhaps you should try some spelling variations:
than thuong » thanh thuong, phan thuong, han thuong
thuat mach » thuat sach, thuat tach, thuyet mach
phau thong » phap thong, khau thong, phan thong
bac thuoc » ban thuoc, bai thuoc, tac thuoc
thuoc san » thuc san, thuoc ban, thuoc tan
khoa phau » hoa phan, khoa kham, khoa thu
mach khoa » bach khoa, anh khoa, may khoa
khoa than » khoa luan, hoa thai, hoa tan
sach bac » sach bai, sach dao, sach xa
san khoa » toan khoa, hang khoa, da khoa
ki thuat » ky thuat
so sach » so sanh, bo sach, co sach
tu sach » thu sach, su sach, te sach
sach ki » sach kinh, sach bai, sach kem

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach bac thuoc san khoa phau thong ) or ( tu sach ki thuat mach khoa than thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach bac thuoc san khoa phau thong ) OR ( tu sach ki thuat mach khoa than thuong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach bac thuoc san khoa phau thong ) or ( tu sach ki thuat mach khoa than thuong ))*.