I have a Lucene index where (when using Luke) the data seems ok.

When i try to query the index i don't get the expected results.

In my Lucene index i have a series of fields - for example firstname that contains the name 'Dennis' - but when i query the index it returns nothing. In another firstname field i have 'Hanne' - if my search phrase is 'Hanne' it returns nothing - but if it is 'Anne' the name is found.

I have made a stripped down version of what I am doing. I am using the WhiteSpaceAnalyzer in both my indexer and my searcher.

Code:
string[] _internalFieldsToSearch = new[] { "company", "department", "description", "firstname", "jobTitle", "lastname", "mobileNumber", "workArea", "email", "memberPositions" };

string searchText = searchStr.Trim();
while (searchText.IndexOf('*') == 0 || searchText.IndexOf('?') == 0 || searchText.IndexOf('.') == 0)
{
    searchText = searchText.Remove(0, 1);
}

if (searchText.Length > 0)
{
    string[] searchTerms = searchText.Split(' ').ToArray();

    BaseSearchProvider searcher = ExamineManager.Instance.SearchProviderCollection["InternalEUCMemberSearcher"];
    ISearchCriteria searchCriteria = searcher.CreateSearchCriteria(BooleanOperation.Or);

    string term = "*" + searchText.ToString() + "*";

    IBooleanOperation queryFiltered = searchCriteria.GroupedOr(_internalFieldsToSearch, term.ToLower().MultipleCharacterWildcard());

    ISearchResults searchResults = searcher.Search(queryFiltered.Compile());
}