Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap thong » phap phong, phap chong, pho thong
phan thong » phan thuong, phan hong, phan tong
tham thuc » nham thuc, pham thuc, tam thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
oanh thi » anh thi, oanh tho, doanh tai
thi phuc » thi phu, thi thuc, thien phuc
phuc cac » phuc cam, phuc ca, phuc cham
ban tham » ban than, van tham, ban ham
tu oanh » thu oanh, tu hanh, tu manh
cach ha » cach pha, bach ha, sach ha
ha phan » hoa phan, hai phan, va phan
tu ban » thu ban, te ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu oanh thi phuc cac khoan phap thong ) OR ( tu ban tham thuc cach ha phan thong ))~.
• Adding a wildcard symbol may retrieve word variants: (( tu oanh thi phuc cac khoan phap thong ) or ( tu ban tham thuc cach ha phan thong ))*.