You can access the search feature from the calendar or weekly view of your planbook.
In the calendar view, click on the magnifying glass icon.
Then, enter your search terms.
In the weekly view, click on the wrench icon under the "Week of..." title.
Here, you will find the search field and other options.
When you type in your search term(s), any possible matches from your planbook will appear. You will then have the option to jump to the week where the search term occurs or edit the box right then and there.
For more information, see our video tutorial on searching your plans