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thuoc thanh » chuoc thanh, thuc thanh, hoc thanh
thanh khoa » thanh hoa, thanh pho, hang khoa
phan thong » phan thuong, phan hong, phan tong
sach tranh » canh tranh
ban thuoc » dang thuoc, cay thuoc, nam thuoc
khoa phan » hoa phan, khoa than, khoa phau
tranh hoc » thanh hoc, tranh cuoc, tranh duoc
sach ban » sach bai, sach han, sach bac
anh khoa » doanh khoa, hang khoa
tu sach » thu sach, su sach, te sach
hoc anh » hoc nganh, hoc nhanh, ngoc anh
khoa he » hoa he, khoa hoc, khong he