Interesting, the first 4 results are pictures of tanks, which ddg is currently (for me) showing for an image search for "tank man"

The 5th result is a picture of Chinese police on segways in modernish day Tianamen square

"China still gets annoyed with images showing the famous ...markets.businessinsider.com"

but that doesn't show up on "tank man" alone.

The actual famous image is result 10 and 11 (slight difference, 10 has 4 tanks, 11 taken from a different angle and presumably a little earlier has 3)

Didn't work for me, though it does link to the wikipedia article as the first link.

But no images on Bing for the same query.