Perhaps you should try some spelling variations:
phan thong » phan thuong, phan hong, phan trong
sach tham » sach nha
tham thuc » nham thuc, tam thuc, thai thuc
thuc bach » truc bach, thuoc sach, thuc hanh
sach pham » sach phat, sach phap, san pham
pham thuc » phap thuc, pham chuc, nham thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
phan tong » phan trong, phan cong, han tong
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
cach con » cach hoan, cac cong, cac co
con phan » cong phan, co phan, bon phan
te sach » toc sach
tu sach » thu sach, su 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: (( te sach tham thuc bach hoa phan thong ) or ( tu sach pham thuc cach con phan tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tham thuc bach hoa phan thong ) OR ( tu sach pham thuc cach con phan tong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tham thuc bach hoa phan thong ) or ( tu sach pham thuc cach con phan tong ))*.