Search constraint specific searching for content from a mobile device is disclosed. Following a mobile device generated request for content, a content server provides for the search of content on a network service or personal computer. The search for content may occur directly through the content server or via a connector application. An index engine parses and lists structured and unstructured content, which may be responsive to the search request. The content server or a proxy then provides a sub-set of the search results, that subset corresponding to both the mobile device generated request for content and a search constraint such as mobile device capabilities or network service provider limitations.