Getting a public Playlist

[martinmichaelse]

Plan

Premium

Country

Denmark

Device

WEB

My Question or Issue

Greetings.

From C# I am searching for public Playlist using 

https://api.spotify.com/v1/search?q=MTMs+utterly&type=playlist

I give my Client Credentials Token in the Header and the call is successfull. But the result is not containing what I am searching for (I should get MTMs utterly partymix) Actually it does not matter if I put in a non valid token. If I do this in the API tester everything is fine. I can see that the testers header also contains a token but where does it get this from? 

With my Client Credentials Token I can see the content of playlists just fine (if i have the Id or the name) but getting a list of playlists are getting me troubles.

Any ideas?

Kind regards