15. A computer-implemented method performed at a user computer comprising one or more processors, the method comprising: obtaining, by at least one of the processors, a search query to search user's content items hosted by an online content management service; using, by at least one of the processors, the search query to identify in a local index at the user computer a first set of one or more of the user's hosted content items that satisfy the search query; displaying, by at least one of the processors, in a graphical user interface at the user computer, for at least a first content item in the first set of one or more of the user's hosted content items that satisfy the search query, a first search answer summary for the first content item; wherein a version of the first content item is stored at the user computer at the time the search query is obtained; wherein the first search answer summary indicates that the version of the first content item stored at the user computer is older than a version of the first content item hosted by the online content management service; sending, by at least one of the processors, the search query over a communications network to the online content management service; receiving, by at least one of the processors, over the communications network from the online content management service, one or more remote answers to the search query, the one or more remote answers corresponding to a second set of one or more of the user's hosted content items identified by the online content management service, using a remote index at the online content management service, as satisfying the search query; updating, by at least one of the processors, the graphical user interface at the user computer to display, for at least a second content item in the second set of one or more content items of the user's hosted content items that satisfy the search query, a second search answer summary for the second content item; and wherein, after the updating, the graphical user interface at the user computer displays at least both the first search answer summary for the first content item and the second search answer summary for the second content item.
20. The method of claim 15 , further comprising selecting, by at least one of the processors, the second content item to display in the graphical user interface at the user computer based on a relevance score computed for the second content item by the online content management service and received in the one or more remote answers for the second content item.