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sinh khong » tinh khong, sinh phong, thinh khong
khong phap » chong phap, khong phai, phuong phap
phap chong » phap phong, phap cong, pham hong
phan thong » phan thuong, phan hong, phan tong
khoa phan » hoa phan, khoa than, khoa phau
cach noi » cach thoi, hanh noi, anh noi
sach tri » sach tai, sach tren, sach truc
tan khoa » toan khoa, tran khoa, san khoa
tu cach » tu cac
noi hoc » hoi hoc, voi hoc, noi khoa
su sach » so sach, vu sach
tri hoc » triet hoc, tri thuc, thai hoc
hoc tan » hoc tang, hoc dan, hoc tap