Elasticsearch scroll getting same results -

using elasticsearch 5.3.0, getting same results using srcoll api. both results , scroll_id returns remains same first call

curl -xpost 'localhost:9200/myindex/mytype/_search?scroll=1m&pretty' -h  'content-type: application/json' -d' {     "size": 5,     query: {           "match_all": {}     } } '  curl -xpost 'localhost:9200/_search/scroll?pretty' -h 'content- type: application/json' -d' {     "scroll" : "1m",      "scroll_id" : "copy _scroll_id"  } '