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nghiep cach » nghiep sach, nghiep cay, nghiep bac
cach cong » cac cong, cach con, khach cong
phan cung » phan cong, phan ung, phan xuong
mach hoc » cach hoc, anh hoc, bac hoc
dich hoc » sinh hoc, hinh hoc, tinh hoc
cong hoc » dong hoc, cong hoa, cong coc
hoc phan » hoc dan, hoc pho
cung hoc » chung hoc, dung hoc, vung hoc
dan nhan » danh nhan, dan chan, van nhan
nhan tao » nhan tai, nhan dan
hoi dan » hoa dan, hoc dan, hoi dap
hoc xa » hoc ma