We created the WMF-CTO-Team-Backlog and WMF-CTO-Team-InProgress projects. If you are editing a task, and in the "Tags" field you type CTO, this project should be offered. But neither one is. If you type WMF, both are. If you type inprogress, then WMF-CTO-Team-InProgress is offered.
This misbehavior is also true in the search box in the upper-right toolbar area.