twitter api v2 expansion field option returns less data than the endpoint

user_data = 'user.fields=description,location,name,public_metrics,username,verified'
expand = 'expansions=author_id'
tag = 'new zealand -is:retweet'
url = "https://api.twitter.com/2/tweets/search/recent?query={}&{}&{}".format(tag, expand, user_data)

so this is the way I organized my request, let say the maximum number of data I want from this endpoint is 20, I can use the expansion field to get additional data about the tweet author, the problem is the expansion field payload does not match the default data return by the endpoint. for example, If the endpoint returns 20 tweets the expansion field also returns 20 fields, but in my case sometimes I get just 1, any help, please…

API response sample

  data part
    {'data': [{'id': '1341144983215239170',
       'lang': 'en',
       'created_at': '2020-12-21T22:14:15.000Z',
       'text': "@chrissy99912291 Is it because he's neo? When DJ cuppy said she needs iPhone 12 no one dragged her, why y'all pressed? What kind of mentality is this?",
       'author_id': '1268532525321932803',
       'public_metrics': {'retweet_count': 0,
        'reply_count': 0,
        'like_count': 0,
        'quote_count': 0}},

include[‘user] part

{'username': 'AOmozoya',
    'description': "I'm gifted",
    'id': '1102564893071429633',
    'verified': False,
    'location': 'xx, xx,
    'public_metrics': {'followers_count': 64,
     'following_count': 383,
     'tweet_count': 608,
     'listed_count': 0},
    'name': 'Special_miracle'},

the length of the two response was supposed to be equal for this particular response when i try to check the length of both like this. data is the name of the json response.

len(data['data'])
>>100

whiles

len(data['includes']['user'])
>>32

user data is supposed to correspond with each tweets.