Perhaps you should try some spelling variations:
phan thuong » hang thuong, phan xuong
phau thong » phap thong, khau thong, phan thong
sach thai » sach tham, sac thai, sach tai
thai thuc » thai thuy, thai tuc, tham thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
cach doan » cach hoan, hach toan, cac doanh
doan phan » doanh phan, toan phan, dan phan
thuc bach » truc bach, thuoc sach, thuc hanh
bach khoa » anh khoa
khoa phau » hoa phan, khoa kham, khoa than
thu sach » thuat sach, thuoc sach, thu hoach
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
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: (( tu sach thai thuc cach doan phan thuong ) or ( thu sach dao thuc bach khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach thai thuc cach doan phan thuong ) OR ( thu sach dao thuc bach khoa phau thong ))*.