可以考虑使用请求参数进行过滤或修改查询词以获得更准确的结果。以下是代码示例：

1. 使用请求参数过滤结果：

import requests

url = "https://api.cognitive.microsoft.com/bing/v7.0/images/search"

querystring = {"q":"panda","license":"Public","safeSearch":"Moderate"}

headers = {
    "Ocp-Apim-Subscription-Key": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

response = requests.request("GET", url, headers=headers, params=querystring)

print(response.json())

2. 修改查询词以获得更准确的结果：

import requests

url = "https://api.cognitive.microsoft.com/bing/v7.0/images/search"

querystring = {"q":"realistic panda","license":"Public","safeSearch":"Moderate"}

headers = {
    "Ocp-Apim-Subscription-Key": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

response = requests.request("GET", url, headers=headers, params=querystring)

print(response.json())