Hi @slrslr,
You can search for a phrase across all projects by using the search bar located in the upper right corner (next to the notifications and messages icons)
You can also sort projects in your workspace by last activity date by switching to the list project view
That said, we recommend setting up notifications for new strings so that you always know which project needs your attention. However, it’s important that project managers enable this option in Project Settings > Privacy > Notifications > “Notify translators about new strings”