Set "Type of Search" to "Normal" to use the standard search settings for Compton's. This means that grammatical stemming is on. When grammatical stemming is used, a search for the term "run" will find all grammatical forms of "run", including "run", "runs", and "running".
In addition to stemming, CPL ignores common conjunctions and articles--for example "the", "a", and "of".
