Not working regex

[thomaslc66]

Let's say I have this text:

Posted 3 weeks ago
Rystad Energy
DevOps Engineer
Rystad Energy Your Energy Knowledge House

if I search for "ago" the result in the new file is "Posted 3 weeks ago". This is not the regex I need and as you can see here the regex should only return ago and not the entire line:

Then if I search for ago\n.*\n to have the "Rystad Energy" I get a "no match found" on the visual studio plugin. But when I test it on regex 101:

Could you please have look and check why the regex are not working?

[Ara225]

Hi,
Sorry I missed this, I'm afraid it was only ever meant to operate with whole lines because that's what I wanted it for at the time but you do make a good point