your contact search is terrible. partial spelling should work but often doesn't.
contact search lacks
Thank you for using Outlook and letting us know about your current experience. We really appreciate your support.
We are so sorry this is happening to you. Please contact us through the Help Section of the app (Gear Icon > Help & Feedback > Contact Support) so that we can assist you in the best possible way.
We look forward to fixing this for you.
All the best
The Outlook Mobile Team
PS: Please use the Help Section of the app for any questions, we are not able to see replies to this address.