data.gov CKAN API ignores row parameter, returns duplicate results for different search terms

Question

Using the data.gov CKAN api, this search via the web GUI returns 566 results: children

However, post requests via the CKAN API returns 10 results despite the row parameter being set and, incidentally, it appears that no matter the search query that the results are the same.

import json, requests
url = 'http://catalog.data.gov/api/3/action/package_search'
headers = {'Content-type': 'application/json'}
q1 = {'q':'abcdefghijklmnopq', 'rows':600}
q2 = {'q':'children', 'rows':600}

queries = [q1, q2]
responses = []

for q in queries:
    r = requests.post(url, data=json.dumps(q), headers=headers)
    r = r.json()
    print(len(r['result']['results']))
    responses.append(r)

print(responses[0] == responses[1])

Given the example above code what modifications allow the CKAN api to reflect the web GUI search results.

note: this question has been posted as an data.gov issue

note: the solution at data.gov action api parameters seem to be ignored appears to no longer return just 2 results