ElasticSearch- unable to search

Hello,

i’m trying to connect to the ES and search for a document. i use robotframework-elasticsearchlibrary · PyPI & i read the docs in robotframework-elasticsearchlibrary/ElasticsearchLibrary.py at master · peterservice-rnd/robotframework-elasticsearchlibrary · GitHub BUT i was not able to get anything from the search keyword.

Anyone was able to connect to the ES and search for a document?
would really appreciate your assistance .
Moshe