Search for SUSY in final states with jets and two same charge or three leptons with ATLAS detector

Supersymmetry (SUSY) is a theoretically favoured candidate for physics beyond the Standard Model (SM). Many Supersymmetric models predict squarks ($\tilde{q}$) and gluinos ($\tilde{g}$) that could be accessible at the LHC, due to the large cross sections. In SUSY theories squarks and gluinos decay in cascades producing SM particles and lighter SUSY particles. When R-parity is conserved, the Lightest Supersymmetric Particle (LSP) is stable and weakly interacting, so supposed to be undetected and producing missing transverse momentum ($E^{miss}_{T}$) in the final state. This proceeding summarizes the results in the search for squarks and gluinos in final state with jets, $E^{miss}_{T}$, and two same sign or three leptons during the Run1 at $\sqrt{s}$ = 8 TeV