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thieu thuc » hieu thuc, tieu thu, thien phuc
khoa thong » hoa thong, thoai thong, khoi khong
khoa khoa » hoa khoa, khuan khoa, khoa hoc
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, cac khoan
pho thong » he thong
thuc dac » thuoc dac, thuc dan, thuc day
dac khoa » da khoa, dai khoa, dau khoa
sach thu » sach thue, sach tham, cach thuc
thu thuc » thuc thuc, thu thuoc, thue thuc
khoa pho » khoa phu, khoa phau, khoa hoc
tu sach » thu sach, su sach, te sach