Do all Hindu saints perform miracles ?
No. Miracles are considered mere dynamics of Nature which are not understood fully by the observer. Miracles are nothing different from regular events. If something is not expected, it is a miracle. They are not worth to be sought after. The goal of Hinduism is to realize God. Miracles are considered objectionable hinderances towards that goal. No teacher of Hinduism advises his disciples to attain the power to do miracles. Seeking after miracles is considered a sign of spiritual weakness.