Hi @William_Henderson and welcome to the Forum!
Here are a few things that might help:
- Systematically clear all notifications from your Inbox so you avoid notifications building up. If there is something you want to “keep”, create a follow-up task instead directly from your Inbox (See screenshot below). You can then create a Section dedicated to Follow-up tasks in your My Task to easily find them when you need to.
- When using the Advanced Search, make sure to fill up as many criteria as you can (for example if you know the tasks has a specific custom field, or you know you’re colleague is following it too). If you’re not familiar with all crietria available, have a look at this article from our Guide: Using Search & Advanced Search in Asana | Product guide • Asana Product Guide
- If you haven’t yet, add your vote to the following thread: More filtering options to filter Inbox notifications
Hope this helps! Let me know if you have any follow-up questions!