I have set up some campaigns and most of the ads are running however some of them aren't. I have set the ads to show as fast as possible, set a high maximum cpc and created ads with the keywords in the advert text. Does anyone know why some of my ads aren't being displayed when I use the keywords in Google (am using exact match and typing the exact keyword in Google)? The only thing I can think of is that Google might not think that the ads are relevant enough to the website although it's not giving me any message to say that.
when I meet with this question , I put forward this problem to my service which is in google , and charge of our company's adwords evernt.