In Google Custom search we pass date range criteria in sort parameter
http://www.example.com/search?cx=xxxxxxxxxxxxxxxxxxxxx:yyyyyy_yyyyy&q=google&sort=date:r:20160304:20160505.
https://developers.google.com/custom-search/docs/structured_search#restrict_to_range
But we are not getting expected result as per the date range criteria. After debugging the code the sort parameter is not getting passed to custom search URL even when we are passing it on to our search page url.
Google Custom search URL:
https://cse.google.com/cse?q=google&r=m&cx=xxxxxxxxxxxxxxxxxxxxx:yyyyyy_yyyyy&fexp=20606&client=google-coop&hl=en&type=0&oe=UTF-8&ie=UTF-8&format=p4&ad=p4&nocache=1081472127237880&num=0&output=uds_ads_only&source=gcsc&v=3&allwcallad=1&adext=as1%2Csr1%2Cctc1&bsl=10&u_his=50&u_tz=330&dt=1472127237882&u_w=1366&u_h=768&biw=1349&bih=233&psw=1349&psh=233&frm=0&uio=uv3st16sd13sv13lhsl1sr1cc1-&jsv=14100&rurl=http%3A%2F%2Fwww.example.com%2Fsearch%3Fcx%xxxxxxxxxxxxxxxxxxxx_yyyyy%26q%3Dgoogle%26sort%3Ddate%253Ar%253A20160304%253A20160505
But when we try to access the direct API with sort date range parameter we are getting expected results.
https://www.googleapis.com/customsearch/v1?q=google&cx=xxxxxxxxxxxxxxxxxxxxx:yyyyyy_yyyyy&sort=date%3Ar%3A20160701%3A20160724&key=<APIKEY>
We are using Google custom search V2 implementation.
Thanks, Anup