get results for multiple keywords Alchemy Data news Api

Alchemy Data news Api is not providing any results when running multiple keywords. Whereas runs fine when running on a single keyword.

here is the URL:

https://access.alchemyapi.com/calls/data/GetNews?apikey=YOUR_API_KEY_HERE&return=enriched.url.title,enriched.url.url,enriched.url.entities,enriched.url.docSentiment,enriched.url.concepts,enriched.url.taxonomy&start=1457568000&end=1458255600&q.enriched.url.text=apple%20clean%20technology&count=25&outputMode=json

result:

{
    "status": "OK",
    "usage": "By accessing AlchemyAPI or using information generated by AlchemyAPI, you are agreeing to be bound by the AlchemyAPI Terms of Use: http://www.alchemyapi.com/company/terms.html",
    "totalTransactions": "191",
    "result": {
        "status": "OK"
    }
}

do i need to include any other parameter to get results for multiple keywords. Is it because I am just using the query builder demo?. And it could be possible programmatically.