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tai thuat » tam thuat, giai thuat, ki thuat
pho thong » he thong
thuat san » thuat toan, thuat song, thuat lanh
phu thong » phap thong, khau thong, phan thong
toi thuc » tri thuc, noi thuc, thi thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
khoa pho » khoa khoa, khoa phau, khoa hoc
sach tai » sach bai, sach tham, sach dao
san khoa » toan khoa, hang khoa, da khoa
khoa phu » khoa phau, khoa thu, hoa phu
cac toi » cac thoi
te sach » toc sach