What is Term Frequency Searching?
You can now limit the results retrieved by your search query to display only those documents that refer to particular search terms extensively, or documents that have one term appear more often than others. You are now able to dictate that a term must appear at least a certain number of times within a document before that document is included in your search result list.
How to use the new Term Frequency search functionality
There are two ways to add Term Frequency criteria to your search query. You can add the Term Frequency connector directly to the text of your search query or you can use the TermFrequency link when doing a Terms and Connectors search.