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phan thong » phan thuong, phan hong, phan tong
khoa phan » hoa phan, khoa than, khoa phau
sach truc » cach thuc, sach tren, sach thu
thu sach » thuat sach, thuoc sach, thu hoach
khoa hoc » hoa hoc
sach tri » sach tai, sach tren, sach bai
anh khoa » doanh khoa, hang khoa
truc tu » truc du, truc cu, thuc tu
tu toan » tu than, tap toan, duc toan
tu sach » su sach, te sach, tu cach
tri thi » tri tai, tai thi, thi thi
thi anh » thi hanh, thi thanh, thich anh