Returning the child fields next to matched field

Elastic Stack Elasticsearch
1

Assume that I have a document like below

{
"_index": "sample",
"_type": "doc",
"_id": "student_id_1",
"_version":2,
"_score":1,
"_source":
{
"title": "Higher secondary",
"DOJ":2020-06-23,
"S_id":"SH123",
"first_name":"Gopiraj",
"last_name":"Muthusamy"
"subjects":[
{
"name":"english"
"type":"communication"
"sub_id":1
},{
"name":"Maths"
"type":"learning"
"sub_id":2
},{
"name":"science"
"type":"learning"
"sub_id":3
}]
}
}

from the above document i using highlight method to display the macthed field and its value but its not returning other fields inside the hash, for example the word that i need to search for is "learning", I'm expecting ES should return like below in highlight or in any other form

[
{
"sub_id":2,
"type":"learning"
},{
"sub_id":3,
"type":"learning"
}
]

Please guide

2

does highlight_query inside highlight will work? I know that highlight_query is used to work on the resultant data but still is there is any chance of getting the results expected above?

3

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