Described herein are various embodiments for customizing search results in a multi-content source environment. An embodiment operates by receiving input corresponding to a search from a user and retrieving a content history indicating which content was previously viewed by the user. It is determined that the content of the content history is organized into one or more preconfigured categories. A new category of content is generated based on the content history for the user. The content of the content history for user is arranged based on both the new category and at least a subset of the one or more preconfigured categories. The arranged content is displayed in a manner customized to the user.