Perhaps you should try some spelling variations:
khoan phap » khoan phai, han phap, khong phap
phap thong » phap phong, phap chong, pho thong
phau thong » khau thong, phan thong, phan thuong
sach thai » sach tham, sac thai, sach tai
thai thuc » thai thuy, thai tuc, tham thuc
khoa phau » hoa phan, khoa kham, khoa than
thu lanh » thu canh, thi lanh, thu anh
dao thuc » dan thuc, dao tuc, do thuc
thuc cac » thuc cach, tuc cac, phuc cac
su sach » so sach, vu sach
thuc da » thuc dan, thuc day, thuc dia

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu lanh dao thuc cac khoan phap thong ) or ( su sach thai thuc da khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu lanh dao thuc cac khoan phap thong ) OR ( su sach thai thuc da khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu lanh dao thuc cac khoan phap thong ) or ( su sach thai thuc da khoa phau thong ))*.