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phan thong » phan thuong, phan hong, phan tong
khoa thong » hoa thong, thoai thong, pho thong
sinh khoa » sinh hoc, sinh hoat, anh khoa
khoa khoa » hoa khoa, khuan khoa, khoa hoc
khoa phan » hoa phan, khoa than, khoa phau
thu sanh » thu canh, thu sinh, thu anh
sanh tri » thanh tri, dinh tri, minh tri
dau khoa » da khoa, dac khoa, dai khoa
tri hoc » triet hoc, tri thuc, thai hoc
thu san » thuy san, thu ban, phu san
san hoi » san choi, dan hoi, van hoi
hoi hoc » hoa hoc, khoa hoc, hoi chuc
hoc dau » hoc dan, hoc dai, hoc dat