How to better search timeline or team area when creating work item query
One answer
This is in the WebUI? If so, when I am creating a work item query, and adding a "Team Area" query term, the team areas appear in a hierarchical list, and each level of the hierarchy is alphabetically sorted. Is that what you are seeing? But I agree a search bar would be nice to have here ... that would be an RFE.
For the "timeline", I wasn't aware there is a "timeline" valued attribute. Or did you mean iteration? If so, when I add a "Planned For" attribute, I do get a search bar.