Querying Elasticsearch in Grafana

Hi @daniellee, I have some questions for you and I would be grateful if you could help me.
I want to create a query variable, but the following query does not produce any output, “{“find”: “terms”, “field”: “Feed Name.keyword”, “query”: “File Diff: $FileDiffNegative”}”
Also, when I run a range query in the panel, it does not bring any output.“File Diff:[0 TO *]” (The File Diff is a field with zero, positive and negative values).
I want to query the positive and negative values of this field separately, but I really don’t know how to do it, I would really appreciate it if you could help me.