Because it doesn't show the conspiracy theory enhancing the authors conspiracy anti-covid/anti-moon landing opinion :
meaning you will never find the truth about the moon landing or COVID vaccines there even if the query asks for exactly that. What you will find - though - is a bunch of irrelevant "fact check" or "science loving" sites, or ones shitting on "conspiracy theorists".
Leaving out all other conspiracy theories, since I may agree with some of them, the claim that the moon landing was staged strikes me as mindblowing over everything else. You just need to look at the Moon wath a telescope to disprove it, no need to believe to any scientist.