In a surprise to literally no one, Google found to cook search results.

For example, the FTC staff noted that Google presented results from its flight-search tool ahead of other travel sites, even though Google offered fewer flight options. Google’s shopping results were ranked above rival comparison-shopping engines, even though users didn’t click on them at the same rate, the staff found. Many of the ways Google boosted its own results have not been previously disclosed.

How Google Skewed Search Results - WSJ

But of course they did.