How to search at the beginning of a title field in Elasticsearch

Question

I want to find products in elastic of a certain name & color and brand. To do this, specify 3 fields for the search. Elastic returns products that I have not searched for. Input query can be any, for example, I decided to find blenders in black color of a certain brand but the query can include anything.

POST products/_search 
{
  "_source": [ "Title","Brand", "SKU", "Color"  ], //which field do I want to get in result json
    "query": {
        "multi_match" : {
            "query" : "blender hendi black",   // input query
            "fields": ["Brand","Title", "Color"],  //search fields
            "minimum_should_match": "2", // I also tried query without this attribute
            "fuzziness": 1      //misspelling // I also tried query without this attribute
        }
    },
    "size": 10
}

Elastic result:
There are only two objects in this example, but the whole response contains many products that are not relevant like the second product in the example  - "Replacement die for  Hendi sealing machine made of polished aluminum Black silicone gasket"

{
  "took": 5,
  "timed_out": false,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": {
      "value": 3,
      "relation": "eq"
    },
    "max_score": 10.110109,
    "hits": [
      {
        "_index": "products",
        "_id": "2ymTUYcBoby_8DNrw9q0",
        "_score": 10.110109,
        "_ignored": [
          "event.original.keyword",
          "Long_description.keyword"
        ],
        "_source": {
          "Brand": "saro",
          "Title": "Cup blender black 2 L, 0.95 kW",
          "Color": "Black",
          "SKU": "329-20151"
        }
      },
      {
        "_index": "products",
        "_id": "sCmSUYcBoby_8DNr4WZp",
        "_score": 9.749819,
        "_ignored": [
          "event.original.keyword"
        ],
        "_source": {
          "Brand": "hendi",
          "Title": "Replacement die for  Hendi sealing machine made of polished aluminum Black silicone gasket",
          "Color": "Silver",
          "SKU": "HEN-805589"
        }
      }
      }
    ]
  }
}

I understand why elastic finds products that are not blenders, because in the title occurs the name of the color and the product brand name, which turns out to be a match for the two words from the query. How this case can be solved? How to make elastic return only what I expect?

I did not change anything in the mapping it created itself

{
  "products": {
    "mappings": {
      "properties": {
        "@timestamp": {
          "type": "date"
        },
        "@version": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "Color": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "Brand": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "Title": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },

I didn't change the standard mapping. I keep all products in the same index. Although I have quite different products with a different number of fields, is it ok to store different entities in the same index? I couldn't find a specific answer... Thank you in advance if you follow me in the right way!