All these links discuss the possibility of such planets where liquid water could be.
It's all speculation and absolutely no empirical evidence to support these claims.
If you're saying there's no empirical evidence - then you didn't read the links.
What else is there to discuss?
"gimme links i cant google for myself, dammit!"
"the links dont say what they say, their methods are bunk! I'm a much more highly qualified scientist, to offer this opinion! dismissed!"
It's corny denial, bro. Seriously.
Yes I read every one of the links.
They conduct test and throw out the findings that doesn't suit their preconceived ideas and use the results that do.
Pretty simple really.
When words like "could", "possibly", "may", appear you can pretty much bet it's not a certainty.
And why is it they can conduct all these test and experiments on planets far, far way, but can't look to see if there is in fact liquid water and/or life there?
How can you use an instrument to conduct a test light years away and be certain of it's accuracy?
In Short, you can't. You can only speculate on the results.
The fact that you ask, is an admission that you're not very well versed on the study of the Universe, in general.
If you don't like reading, which a lot of people don't for some reason, I'd start with season 1 of "through the wormhole."
It's a docu-series and has like 6 or 7 seasons now.
The series hosts the most advanced men in the field of study to date, it explains their theories, findings, their methods, etc. in a very succinct way for you,
and it answers the question I bolded above.
But don't reject the sciences out of hand and at the same time admit that you've not even bothered to study much into any of them. That's just confirmation bias. Being more open minded makes you smarter, believe it or not. I learned that when I was like 22.