I\'m trying to get notepad++ to regex find all instances of \"abc\" and \"def\" in the following sentence:
The abc went to the def.
I was having the same problem, which is how I landed here. Since it's a notepad++ deficiency, we can make do by using Powershell. In your case, simply run a Select-String:
`ss abc,def filename`
If on Unix then you have other tools like grep of course.
I recognize you wanted a solution for notepad++, and so do I, but sometimes you have to make do.