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khoan nguoi » hoa nguoi, hon nguoi, khoan nhoi
nguoi thanh » nguoi thai, nguyen thanh
khoa thong » hoa thong, thoai thong, pho thong
cach khoan » cac khoan, cach hoan, bach khoa
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa khoa » hoa khoa, khuan khoa, khoa hoc
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
sach bai » sach dao, cac bai, sach xa
thi hanh » thi thanh
so sach » so sanh, bo sach, co sach
bai thi » bui thi, ban thi, tai thi
tu sach » thu sach, su sach, te sach