Getting started with the list plugin can be frustrating and tricky, so here are a few things that might get you started.
There is a test page reserved for admins exactly for the purpose of experimenting with LIST syntax:
One good tip is to use the search page (tiki-searchindex.php) to experiment and check the search index is working properly. Entering some text in the search box (in this case "test") and on this site you will find lots of results, e.g.
Or if you want to find just one type of object try
If you get no results at all (and you know for sure you have stuff with "test" in it, or tracker items) then you probably need to rebuild your search index. Go to Settings -> Control Panels -> Search (or Admin -> Search in previous versions) and click "rebuild". Then try your search again.