I guess if you want to be arrested.

Look, I'm not advocating for anything here, I'm not suggesting anyone who's ever said 'girl' should be thrown in prison.

I just pointed out that it's a specific term used to refer to female children, thus it makes sense that search engines are using it to weed out unwanted searches for child porn. It's a reasonable step to take on their part, and absolutely doesn't affect anyone that isn't looking for CSM. Just use any other word for women. Hell, there are plenty of other derogatory words for women you can use that will still get you tons of results just in case denigrating women is an important part of your searching process.