I created one managed property that is called **Csearch** and this brings true results when I search for `<managed property>: <property value>.`

I go to Search Center and type this.`Csearch:word`

I can see the result I want in the querystring. `k=Csearch%3Aword`

[![enter image description here][1]][1]


And now I want to add new keywords to this querystring.

For example when I type `Csearch:word Sharepoint`in Search Center, I want to see the sharepoint keyword in a querystring with a new name and the `&` symbol.

Thanks.

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/shuOz.png
  [2]: https://i.sstatic.net/JjruU.png