Does Google manipulate their search results for their own product?

Recently I’ve been using Tensorflow Extended (TFX) and I observed something interesting about the search results of Google and DuckDuckGo.

When searching tfx at Google, The first page is all about Tensorflow Extended.

When searching tfx at DuckDuckGo, Tensorflow Extended is shown on the second page…

Supplementary

1. tfx | DuckDuckGo
2. tfx | Google Search