Not Letting Me Delete Small Parts of Audio

So, I was editing my track and I wanted to delete a small part of the audio by zooming in and selecting it then deleting it, but when I tried to it didn’t let me it only let me select a bigger part of the audio. If anybody knows how to fix this please reply.

Did you see this FAQ: ?

Are you using the current 2.0.6 version of Audacity from ? In 2.0.6 the Snap To choice is a dropdown menu that should be fairly hard to enable accidentally.