Catalog API Result does not matching with eBay seller central

[karmaelectronics]

My ultimate goal is to list a new product under the relevant category. I have read the documentation from and try to follow same 

https://www.developer.ebay.com/api-docs/sell/static/inventory/matching-products.html.

I am using below API to search product summary, so I can connect with exact eBay product catalog : 
https://developer.ebay.com/api-docs/commerce/catalog/resources/product_summary/methods/search

Actual API :
https://api.ebay.com/commerce/catalog/v1_beta/product_summary/search?category_ids=165237
You can see there will be a limited result.

{
  "productSummaries": [
    {
      "epid": "2255437655",
      "gtin": [
        "0070847012481"
      ],
      "brand": "Monster Energy",
      "mpn": [
        "ZEROULTRA16OZ"
      ],
      "image": {
        "imageUrl": "https://i.ebayimg.com/00/s/MTYwMFg2NjI=/z/HZkAAOSwSDZZmtuJ/$_57.JPG"
      },
      "aspects": [
        {
          "localizedName": "Brand",
          "localizedValues": [
            "Monster Energy"
          ]
        },
        {
          "localizedName": "Color",
          "localizedValues": [
            "White"
          ]
        },
        {
          "localizedName": "Modified Item",
          "localizedValues": [
            "No"
          ]
        }
      ],
      "ean": [
        "0070847012481"
      ],
      "upc": [
        "0070847012481"
      ],
      "productHref": "https://api.ebay.com/commerce/catalog/v1_beta/product/2255437655",
      "title": "Monster Energy Zero Ultra 16 Ounce",
      "productWebUrl": "https://www.ebay.com/p/Monster%2DEnergy%2DZero%2DUltra%2D16%2DOunce/2255437655"
    },
    {
      "epid": "1861254082",
      "gtin": [
        "0070847024576"
      ],
      "brand": "Monster Energy",
      "image": {
        "imageUrl": "https://i.ebayimg.com/00/s/MTUwMFgxNTAw/z/18EAAOSwux5YWUeR/$_57.JPG"
      },
      "aspects": [
        {
          "localizedName": "Brand",
          "localizedValues": [
            "Monster Energy"
          ]
        },
        {
          "localizedName": "Color",
          "localizedValues": [
            "Green"
          ]
        },
        {
          "localizedName": "Original/Reproduction",
          "localizedValues": [
            "Original"
          ]
        }
      ],
      "ean": [
        "0070847024576"
      ],
      "upc": [
        "0070847024576"
      ],
      "productHref": "https://api.ebay.com/commerce/catalog/v1_beta/product/1861254082",
      "title": "Monster Energy Original Drinks - 16oz.",
      "productWebUrl": "https://www.ebay.com/p/Monster%2DEnergy%2DOriginal%2DDrinks%2D16oz/1861254082"
    },
    {
      "epid": "1400622809",
      "gtin": [
        "0611269991000"
      ],
      "brand": "Red Bull",
      "aspects": [
        {
          "localizedName": "Brand",
          "localizedValues": [
            "Red Bull"
          ]
        },
        {
          "localizedName": "Type of Advertising",
          "localizedValues": [
            "Sign"
          ]
        },
        {
          "localizedName": "Color",
          "localizedValues": [
            "Red"
          ]
        },
        {
          "localizedName": "Original/Reproduction",
          "localizedValues": [
            "Original"
          ]
        },
        {
          "localizedName": "Modified Item",
          "localizedValues": [
            "No"
          ]
        }
      ],
      "ean": [
        "0611269991000"
      ],
      "upc": [
        "0611269991000"
      ],
      "productHref": "https://api.ebay.com/commerce/catalog/v1_beta/product/1400622809",
      "title": "Red Bull Energy Drink 4pk 8.4 Oz Cans",
      "productWebUrl": "https://www.ebay.com/p/Red%2DBull%2DEnergy%2DDrink%2D4pk%2D8%2D4%2DOz%2DCans/1400622809"
    }
  ],
  "href": null,
  "next": null,
  "prev": null,
  "limit": 50
}

While I am doing same though eBay seller central, I was able to see a number of Item Specific's Brand which was I not found using search API of a catalog. Can you give more detail on how to retrieve the exact result from the eBay catalog?

When I try to do same using eBay seller central it works well and showing me more relevant brands. Please find the attachment.