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thoai thong » thoai trong, thong thong, toan thong
khoa thoai » hoa thai, hoi thoai, khoa than
khoan nuoi » khoan nhoi, chan nuoi, khoa noi
nuoi trong » nuoc trong, ngoai trong, bui trong
sach tien » sach tren, sach thieu
tien thuc » trien thuc, kien thuc, bien thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, anh khoa
sach bai » sach dao, cac bai, sach xa
bai thuc » bai thuoc, bao thuc, dai thuc
thuc cac » tuc cac, phuc cac, thac cac
tu sach » thu sach, su sach, te sach