Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap thong » phap phong, phap chong, pho thong
thuc truoc » tuc truoc, thuc thuc, truc thuoc
truoc bang » thuoc bang, truoc cang, truoc cong
sach thuc » cach thuc, sach thu, sach thue
bang khoa » hang khoa, dang khoa, vang khoa
khoa phap » khoa phau, khoan phai, khong phap
sach tri » sach tai, sach tren, sach truc
so sach » so sanh, bo sach, co sach
tue cac » tu cac, tuc cac, te cac
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: (( so sach tri tue cac khoan phap thong ) or ( te sach thuc truoc bang khoa phap thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach tri tue cac khoan phap thong ) OR ( te sach thuc truoc bang khoa phap thong ))*.