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khoa thong » hoa thong, thoai thong, pho thong
phan thong » phan thuong, phan hong, phan tong
khoa khoa » hoa khoa, khuan khoa, khoa hoc
hanh khoa » hang khoa, hanh hoa, han khoa
khoa phan » hoa phan, khoa than, khoa phau
anh khoa » doanh khoa, hang khoa
thi hanh » thi thanh
cac thu » cac thuat, cach thuc, cac thoi
thu thu » thu thuy, thue thu, thu thuc
thu anh » thuy anh, thu canh, thu oanh
cao bai » cao tai, cac bai, cap bai
bai thi » bui thi, ban thi, tai thi
vu cac » va cac, tu cac, ve cac
su cao » cu cao, vu cao, su co