Perhaps you should try some spelling variations:
phan thuong » hang thuong, phan xuong
thuoc bach » thuoc sach, thuoc ban, truc bach
bach khoa » anh khoa
khoa phan » hoa phan, khoa than, khoa phau
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
pho thong » he thong
ta thuoc » tac thuoc, tao thuoc, va thuoc
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
khoa pho » khoa phu, khoa khoa, khoa phau
tu cach » tu cac
cach ta » cach tu, cach pha, xach tay
te sach » toc 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 cach ta thuoc bach khoa phan thuong ) or ( te sach dao thuc hang khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach ta thuoc bach khoa phan thuong ) OR ( te sach dao thuc hang khoa pho thong ))*.