我想搜索所有YouTube频道包含关键字'投资'无论是在他们的YouTube频道标题或描述，保持一些频道变量，并将它们存储在一个dataframe.我使用的是API v3。
我创建了下面的Python代码（在不同的页面结果上循环）：

def search_channels_with_keyword(youtube, keyword):                      
    
    # Initialize variables for pagination (prepare the loop over YT 50 results x page)
    next_page_token = None
    channels = []                        # store/append results in this list

    while True:
        # Search channels with given keyword in title/description
        search_response = youtube.search().list(
            q=keyword, part='snippet', type='channel', maxResults=50, 
            pageToken=next_page_token                                       
        ).execute()

        # Process the search results
        for search_result in search_response.get('items', []):
            channel_id = search_result['id']['channelId']
            channel_title = search_result['snippet']['title']
            channel_description = search_result['snippet']['description']
            channel_thumbnailurl = item['snippet']['thumbnails']['default']['url']
            channels.append({                                                          # Append vars in list 'channels'
                'channel_id': channel_id,
                'channel_title': channel_title,
                'channel_description': channel_description,
                'channel_thumbnailurl': channel_thumbnailurl
            })
            
        # Check if more pages to fetch
        next_page_token = search_response.get('nextPageToken')
        if not next_page_token:
            break                                   # Exit the loop if no more pages

    return channels

if __name__ == "__main__":
    keyword = 'investment'                             
    channels = search_channels_with_keyword(youtube, keyword)

    # Store results in pandas df
    df_channels = pd.DataFrame(channels)
    df_channels

字符串
上面的代码提供了一些不错的输出（584个通道，带有所需的关键字“investment”），但是很少有手动检查让我知道这绝对不是一个全面的列表。例如，它不提供具有+200k用户的this YT信道。
恐怕我错过了很多（重要的）频道。是API的问题吗？我的代码？
提前感谢大家，