We study the three-body charmed baryonic decays B-0 ->Sigma(++)(c)p pi(-) and B-0 ->Sigma(0)(c)p pi(+) in the four-body final state B-0 ->Lambda(+)(c)p pi(+)pi(-), using a data sample of 357 fb(-1) accumulated at the Upsilon(4S) resonance with the Belle d