public static void PrintFrequencyScore(HashSet <string> candSet, WordWcMap wordWcMap, int maxCandNo, bool debugFlag)
 {
     if (debugFlag == true)
     {
         FrequencyScoreComparator <FrequencyScore> fsc = new FrequencyScoreComparator <FrequencyScore>();
         HashSet <FrequencyScore> fScoreSet            = RankByFrequency.GetCandidateScoreSet(candSet, wordWcMap);
         var list = fScoreSet.OrderBy(x => x, fsc).Take(maxCandNo).Select(obj => obj.ToString()).ToList();
         foreach (var item in list)
         {
             DebugPrint.PrintFScore(item, debugFlag);
         }
     }
 }