I've implemented UmbracoLucene in its simplests form (I think). But it fals to find anything when i enter more than one word in the search field.

ExamineIndex.config

    <IndexSet SetName="SiteSearchIndexSet" IndexPath="~/App_Data/ExamineIndexes/SiteSearch/">
      <IndexAttributeFields>
        <add Name="nodeName" />
      </IndexAttributeFields>
    </IndexSet>

ExamineSettings.config

<Examine>
  <ExamineIndexProviders>
    <providers>
      <add name="SiteSearchIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
           supportUnpublished="false"
           supportProtected="false"
           interval="10"
           analyzer="Lucene.Net.Analysis.SimpleAnalyzer, Lucene.Net"
         indexSet="SiteSearchIndexSet" />
      .....

  <ExamineSearchProviders defaultProvider="SiteSearcher">
    <providers>
      <add name="SiteSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
           analyzer="Lucene.Net.Analysis.SimpleAnalyzer, Lucene.Net" indexSet="SiteSearchIndexSet" />
      .....

Script:

@{
  var searchString = umbraco.library.RequestQueryString("search");
  var searchProvider = ExamineManager.Instance.DefaultSearchProvider.Name;
  var searchResults = ExamineManager.Instance.SearchProviderCollection[searchProvider].Search(searchString, true);
}
<ul>

  @if(searchResults.Count() > 0)
  {
    <text>@Model.resultsFoundText</text>
    foreach (var result in searchResults)
    {
       <li><a href="@umbraco.library.NiceUrl(@result.Id)">@result.Fields["nodeName"]</a></li>
    }
  }
  else
  {
    <text>@Model.noResultsFoundText</text>
  }
</ul>

 I think I've followed the guides to the letter and if I use Luke then i get results. Any ideas?