Perhaps you should try some spelling variations:
phan thong » phan thuong, phan hong, phan tong
thuoc bach » thuoc sach, thuoc ban, truc bach
doanh khoa » toan khoa
thu thuoc » tu thuoc, thu thuc, tru thuoc
tuc doanh » muc doanh, tri doanh, tuc dan
khoa toan » khoa than, hoa toan, khoa luan
sach thu » sach thue, sach thieu, sach tham
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
sach dao » lanh dao
vu sach » vu bach, vu khach
su sach » so sach
dao tuc » dao duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach thu thuoc bach hoa phan thong ) or ( su sach dao tuc doanh khoa toan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach thu thuoc bach hoa phan thong ) OR ( su sach dao tuc doanh khoa toan thong )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach thu thuoc bach hoa phan thong ) or ( su sach dao tuc doanh khoa toan thong ))*.