gistfile1.txt

 public List<T> Search<T>(SearchNodesSettings settings, SearchTypeConstraintSettings typeConstraintSettings)
        {
            var term = settings.SearchTerm.ToLower().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            var criteria =
                ExamineManager.Instance.SearchProviderCollection[settings.Index].CreateSearchCriteria(
                    UmbracoExamine.IndexTypes.Content, BooleanOperation.And);
            
            IBooleanOperation filters;
            var items = term.Select(t => Examine.LuceneEngine.SearchCriteria.LuceneSearchExtensions.Fuzzy(t, 0.5F)).ToArray();
            if (typeConstraintSettings.Fields != null)
            {
                filters = criteria.GroupedOr(typeConstraintSettings.Fields, typeConstraintSettings.TypeConstraints);
              

                filters = filters.And().GroupedOr(settings.FilterFields, items);
            }
            else
            {
                filters = criteria.GroupedOr(settings.FilterFields, items);
            }
            
            var results = ExamineManager.Instance.SearchProviderCollection[settings.Index].Search(filters.Compile()).Distinct();

            return results.Select(searchResult => (T)Activator.CreateInstance(typeof(T), new object[] { searchResult })).ToList();

        }