var criteria = ExamineManager.Instance.SearchProviderCollection[searchClass.GetInternalSearcher()] .CreateSearchCriteria(IndexTypes.Content);

var manager = ExamineManager.Instance; var searcher = manager.SearchProviderCollection[searchClass.GetInternalSearcher()];

string[] words = new string{"car","petrol"};

string[] fields = new string{"nodeTypeAlias","petrol"};

Examine.SearchCriteria.IBooleanOperation filter = null;

foreach (var word in words) { if (filter == null) { filter = criteria.GroupedOr(fields, word); } else { filter = filter.And().GroupedOr(fields, word); } }

var results = searcher.Search(filter.Compile());

I want to get all nodeTypeAlias or get "car" and "bus". How I can do it?