Locate the "Search" text field and enter any word you want, whether it's a real word or a made-up one.
Click the enter key to initiate the search.
Wait a few seconds for the results to load.
The results will appear with various suffixes and prefixes that commonly exist, If the word you used to search is real an "Alternative Words" category will also appear with a list of similar or associated words with their availability.
If you want to base a new search off of one of the "Alternative Words" just double click it to start a new search!