Lucenne+盘古分词，FuzzyQuery，WildcardQuery 查询不了字母

[love.李]

Lucenne+盘古分词，FuzzyQuery，WildcardQuery 查询不了字母，查询数字是有结果 有，当查询关键字有字母是没有结果 。新手，请指教
索引生成：

   public bool CreateIndex(IndexWriter writer, MySearchUnit data)
        {
            try
            {

                if (data == null) return false;
                Document doc = new Document();
                Type type = data.GetType();//assembly.GetType("Reflect_test.PurchaseOrderHeadManageModel", true, true); //命名空间名称 + 类名    

                //创建类的实例    
                //object obj = Activator.CreateInstance(type, true);  
                //获取公共属性    
                PropertyInfo[] Propertys = type.GetProperties();
                for (int i = 0; i < Propertys.Length; i++)
                {
                    //Propertys[i].SetValue(Propertys[i], i, null); //设置值
                    PropertyInfo pi = Propertys[i];
                    string name = pi.Name;
                    object objval = pi.GetValue(data, null);
                    string value = objval == null ? "" : objval.ToString(); //值
                    if (name == "id" || name == "flag")//id在写入索引时必是不分词，否则是模糊搜索和删除，会出现混乱
                    {
                        doc.Add(new Field(name, value, Field.Store.YES, Field.Index.NOT_ANALYZED));//id不分词
                    }
                    else
                    {
                        doc.Add(new Field(name, value, Field.Store.YES, Field.Index.ANALYZED));
                    }
                }
                writer.AddDocument(doc);
                writer.Close();
            }
            catch (System.IO.FileNotFoundException fnfe)
            {
                throw fnfe;
            }
            return true;
        }

查询 （部分）：
public void Search0(string keyword)
{

IndexSearcher searcher = new IndexSearcher(directory_luce, true);

//构建一个Term，然后对其进行模糊查找
Term t = new Term("title", keyword);
//FuzzyQuery query = new FuzzyQuery(t);
//FuzzyQuery还有两个构造函数，来限制模糊匹配的程度
// 在FuzzyQuery中，默认的匹配度是0.5，当这个值越小时，通过模糊查找出的文档的匹配程度就
// 越低，查出的文档量就越多,反之亦然
//FuzzyQuery query1 = new FuzzyQuery(t, 0.5f, 3);
//FuzzyQuery query2 = new FuzzyQuery(t, 0.0f);
TopScoreDocCollector collector = TopScoreDocCollector.Create(110, false);




WildcardQuery query = new WildcardQuery(t);

// WildcardQuery query = new WildcardQuery(t);
searcher.Search(query, (Filter)null, collector);

ScoreDoc[] hits = collector.TopDocs(1, 10).ScoreDocs;
List<MySearchUnit> list = new List<MySearchUnit>();
int counter = 1;
int TotalCount = collector.TotalHits;
foreach (ScoreDoc sd in hits)//遍历搜索到的结果
{。。。。