CustomUmbracoSearchResultCoverter.cs

public class CustomUmbracoSearchResultCoverter : DefaultUmbracoSearchResultCoverter, IUmbracoSearchResultCoverter
    {
        public bool CanConvert(string contentAlias)
        {
            return contentAlias == "nameOfDocType";
        }

        public override string GetCategory(BaseUmbracoItem currentItem)
        {
         
            string category = "";
            if (currentItem.Parent.Parent != null)
            {
                if (currentItem.Parent.Parent.TemplateId.ToLower() == "newslandingpage" ||
                    currentItem.Parent.Parent.TemplateId.ToLower() == "videolandingpage")
                {
                    return currentItem.Parent.Name;
                }
            }
            while (currentItem != null && currentItem.Parent != null && currentItem.Parent.Name != "Home")
            {
                category = currentItem.Parent.Title;
                currentItem = currentItem.Parent;
            }
            

            return category;
        }
    }