Cannot get more than 20 images returned?

Please use `[API Name] Brief description` as title.

## API Name (Kind)
Microsoft.Azure.CognitiveServices.Search.WebSearch;

## Issue Description
I changed my Search code to this:
var webData = await client.Web.SearchAsync(query: "Stop Sign", count: 500);

but I read the Max return is 50, so I changed to:
var webData = await client.Web.SearchAsync(query: "Stop Sign", count: 50);
and either way the most I get back is 20 images??

Is there a way to return say 1000 results and page through the results?