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thuc thanh » thuoc thanh, thuc hanh, phuc thanh
thanh toan » thanh hoa, thanh san, tinh toan
trung cach » trong cach, trung cap, trong cac
sach tham » sach nha
tham thuc » nham thuc, pham thuc, tam thuc
toan phan » thanh phan, toan ban, hoa phan
phan tong » phan trong, phan cong, han tong
bai trung » tai trung, ba trung, bai trong
cach khoa » bach khoa, cac khoa, cac khoan
thu sach » thuat sach, thuoc sach, thu hoach
sach bai » sach dao, cac bai, sach xa
tu sach » su sach, te sach, tu cach
khoa he » hoa he, khoa hoc, khong he
thong » trong