Searching for "Multi-Arm Bandits" correctly contains the Wikipedia article in its result. But, the two-line preview text pulls from the "External Links" at very bottom of the page. This is a weird place to pull for the preview. Here's a screenshot:
I'd expect a more relevant part of the page to be pulled for the preview. Pretty much any sentence from the introduction would do. E.g.
"Instances of the multi-armed bandit problem include the task of iteratively allocating a fixed, limited set of resources between competing (alternative) choices in a way that minimizes the regret."
or
"The multi-armed bandit problem is a classic reinforcement learning problem that exemplifies the exploration–exploitation tradeoff dilemma."
