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thuoc toan » thuoc tan, thuoc thanh, thuat toan
san thuoc » sang thuoc, ban thuoc, san thuc
phu thong » pho thong, phap thong, khau thong
bang khoa » hang khoa, dang khoa, vang khoa
so thanh » son thanh, o thanh, su thanh
toan hoa » toan khoa, toan hoat, toan hoc
sach tri » sach tai, sach tren, sach truc
hoc bang » hoc bong, hoc tang, hoc dan
hoa phu » khoa phu, hoa phi, hoi phu
tu sach » thu sach, su sach, te sach
tri hoc » triet hoc, tri thuc, thai hoc
khoa he » hoa he, khoa hoc, khong he