Simply type a keyword in the Search field at the top of the interface. Once you initiate a search, the Search Bar will appear at the top of the View Pane, and from there you can modify your search to look for other criteria such as Authors or Comments.
It is important to remember that you can only search the collection or folder you have currently selected. So, if you want to search all of your icons for a given term, be sure to select “My Icons” from the main list.
We've tried to anticipate most questions you might have. However, if you can't find the answer you're looking for here, send us your query and we'll answer it personally.