Finding similiar products by name

Elastic Stack Elasticsearch
1

Gven a list of products and each is assign to some categories( Mobile, Apple, iPhone) assigned to it.

iPhone 16 Pro 6.3-inch display
iPhone 16 Pro Max 6.9-inch display
iPhone 16 6.1-inch display
iPhone 16 Plus 6.7-inch display
iPhone 15 6.1-inch display
iPhone 15 Plus 6.7-inch display
...some
...more
...samgsung

If the query is iPhone 99 Edge 7.0-inch display then my goal is to find the similar products by name and retrieve the categories assigned to them. So now the new iPhone automatically got assigned to the those categories( Mobile, Apple, iPhone).

The name field is with type: keyword and I believe I don't need too much fulltext searching functions this use case.

Should I be using minimum_should_match?

GET /products/_search
{
  "query": {
     "bool": {
        "must":[
           {
           "query_string":{
              "query": "iPhone 99 Edge 7.0-inch display",
              "minimum_should_match": "70%"
           }
        }
      ]
    }
  }
}
2

Hello,

I have couple of queries as per my understanding , could you please share below details :

  1. Not sure if we can use minumum_should_match inside the must clause.
  2. Please share current data & what is that you expect to extract.
  3. You have said name is keyword but i do not see to be used anywhere in the query.

Thanks