List<QuestionDto> dto = _db.Questions.Where(x => (x.Title.Contains(temp) || x.Message.Contains(temp) || (x.User.FirstName + " " + x.User.LastName).Contains(temp) || x.User.LastName.Contains(temp)) && (categoryId == null || x.Category.CategoryId == categoryId))
            .Select(question => new QuestionDto { QuestionId = question.QuestionId,
                Votes = question.Votes, Title = question.Title,
                Message = question.Message, CategoryName = question.Category.Name,
                EditDate = question.EditDate, DateOfCreation = question.DateOfCreation,
                User = new UserDto { UserId = question.User.Id, FirstName = question.User.FirstName, LastName = question.User.LastName, ImageFile = question.User.ImageFile },
                Tags = question.Tags.Select(x => x.Tag).ToList()
            }).ToList();

List<QuestionDto> dtoQList = _db.Questions.Where(x => (x.Title.Contains(temp) || x.Message.Contains(temp) || (x.User.FirstName + " " + x.User.LastName).Contains(temp) || x.User.LastName.Contains(temp)) && (categoryId == null || x.Category.CategoryId == categoryId))
        .Select(question => new QuestionDto
        {
            QuestionId = question.QuestionId,
            Votes = question.Votes,
            Title = question.Title,
            Message = question.Message,
            CategoryName = question.Category.Name,
            EditDate = question.EditDate,
            DateOfCreation = question.DateOfCreation,
            User = new UserDto { UserId = question.User.Id, FirstName = question.User.FirstName, LastName = question.User.LastName, ImageFile = question.User.ImageFile },
            Tags = question.Tags.Select(x => x.Tag).ToList()
        }).ToList();

        var questionDictionaryMatchings = new Dictionary<int, int>();

        foreach(var question in dtoQList)
        {
            var titleSplited = question.Title.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' }, StringSplitOptions.RemoveEmptyEntries);

            var messageSplited = question.Message.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' }, StringSplitOptions.RemoveEmptyEntries);

            var firstNameSplited = question.User.FirstName.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' }, StringSplitOptions.RemoveEmptyEntries);

            var lastNameSplited = question.User.LastName.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' }, StringSplitOptions.RemoveEmptyEntries);


            var titleSplitedQuery = from word in titleSplited
                             where word.ToLowerInvariant() == temp.ToLowerInvariant()
                             select word;

            int wordCountTitle = titleSplitedQuery.Count();

            var messageSplitedQuery = from word in messageSplited
                                      where word.ToLowerInvariant() == temp.ToLowerInvariant()
                                    select word;

            int wordCountMessage = messageSplitedQuery.Count();


            var firstNameSplitedQuery = from word in firstNameSplited
                                    where word.ToLowerInvariant() == temp.ToLowerInvariant()
                                    select word;

            int wordCountFirstName = firstNameSplitedQuery.Count();

            var lastNameSplitedQuery = from word in lastNameSplited
                                    where word.ToLowerInvariant() == temp.ToLowerInvariant()
                                    select word;

            int wordCountLastName = lastNameSplitedQuery.Count();

            questionDictionaryMatchings.Add(question.QuestionId, wordCountTitle + wordCountMessage + wordCountFirstName + wordCountLastName);

        }
          //sorted dictionary
          var questionDictionaryMatchingsSorted = from entry in questionDictionaryMatchings orderby entry.Value descending select entry;