Linq 如何获得预期的正确匹配搜索结果？

代码：

“

bas-ge

”不应包含在此搜索结果中，但我正在获取该结果。如何重新定义上述代码，以便只需要获得精确匹配的单词？

如果“bas”是名字，那么term.Contains（x.FirstName）将为true。这样做似乎很奇怪

public List<SearchResult> GetRecordsByTerm(string term)
        {
            return
                _dataReadService.GetRecords()
                                        .Where(x => x.FirstName.Contains(term) || term.Contains(x.FirstName)
                                                    || x.LastName.Contains(term) || term.Contains(x.LastName)
                                                    || x.EmailAddress.Contains(term) || term.Contains(x.EmailAddress))
                                                    .Select(x => new SearchResult()
                                                    {
                                                        DetailedName = (x.FirstName ?? String.Empty) + " " + (x.LastName ?? String.Empty) + (x.Title != null && x.Title != String.Empty ? ", " : String.Empty) + (x.Title ?? String.Empty) + " (" + (x.Office ?? String.Empty) + ")",
                                                        Email = x.EmailAddress
                                                    })
                                        .OrderBy(x => x.DetailedName)
                                        .ToList();
        }

1, "bas ge" 
2, "basket"