Support substring searches for groups in myapps.microsoft.com
When a user goes to myapps.microsoft.com and wants to join a group. The search query does not allow for partial names to be searched. A user needs to know the starting name for the group. As an example: a group named "Product and Service Management" if a users does a search for "Service" or "Management" the group will not display. The user would need to search for "Product" for the proper result to be returned. This search experience does not seem to be consistent with the other areas of myapps such as searching for groups you below or own or searching for apps.
Moving over to the Active Directory team.