Apologies in advance if this has already been mentioned by other members.
Currently it seems there is a minimum threshold of 4 characters for valid search terms capable of generating search results. Failure to meet this character limit criteria in a search will automatically return the following message, "There were no results for your search. Try broadening your criteria or choosing a different content area."
This is a weakness of the search engine, as it can be incorrect and misleading. For example, if I search the term "SM8" (or any other standalone term <4 ch