Actually this feature works fine. Occasionally I write a song title or lyric in the description and I am able to find those specific activities. I was also able to find every time I mentioned "trash" while on a hike, but I didn't add it to the title! Try some other search terms, maybe you are remembering wrong. 

Hello ​@Ahornkorn 

Thank you for your post! I have changed your idea to a conversation so others can talk about keyword search and functionality.

I’m getting the same search anomaly.  I usually put the name of the dog I’m walking with during a hike/walk and the keyword search only brings up 100 walks up to August 16th 2024.  Walks after that date have the dog’s name in, but aren't returned.   This appears to be happening with any keyword entered.  100 walks returned.

I totally agree with this. It actually used to be like that, where if you was to search in your activities it would search in both the 'title' and the 'description' box's. I can't see why this changed, and I really hope this thread gets looked at and this issue can be resolved.