"Contents contains" uses Spotlight. If you search for those terms using Spotlight, does your file show up in the results? If not, then it won't match in Hazel either. You can either diagnose your Spotlight index or use "Contents contain match". The latter is more reliable at the expense of some performance.
Thank you, with "Contents contain match" it worked. But It worked for several years, just now it stopped. Did something change, and or why can't I find the documents in the spotlight search? Any idea?