For a given search, anyway. If you search for pornography oh come on, word censors! or payday loans or 8-track players, you have to find something.
Admittedly it would be pretty funny if a major search engine decided that certain topics aren't allowed to exist. So if you search for, say, "### shots" you only get results from G-rated sites, while "### manufacturing" takes you to a mix of .edu and .gov.