Need to Filter Report on Multi Select Field via URL

Hello all,

I am trying to filter and embed a HTML Creator report in a Page and filter based on the selections in a multi select picklist. Here is what I am trying to accomplish but I cannot seem to get the syntax right for the "OR" portion of the URL.

https://creatorapp.zoho.com/#Report:All_Projects?City=Temple||City=Bryan

I tried the above and neither "OR" or "||" work inbetween the two City parameters. Any help is appreciated.

companyName = "";
countyName = "";
cityName = "";
if(input.Company1 != null)
{
companyName = "Company1=" + Company[ID == input.Company1].Company_Name;
}
if(input.County != "")
{
countyName = "&&County=" + input.County;
}
if(input.City != "")
{
cityName = "&&City=" + input.City;
}
//companyName = Company[ID == input.Company1].Company_Name;
NewSearchResultPublishUrl = zoho.appuri + "view-embed/All_Projects?";
openUrl(NewSearchResultPublishUrl + companyName + countyName + cityName,"iframe","frame12");