Sitecore Content Search with Keywords

Sitecore Content Search with Keywords

public SearchResult<SearchItem> Search(string keywords)
 {
  using (var context = Sitecore.ContentSearch.ContentSearchManager.GetIndex(_searchIndex).CreateSearchContext())
  {
    var queryable = context.GetQueryable<SearchItem>();
 
    Expression<Func<SearchItem, bool>> filters;
 
    filters = GetKeywordFilters(keywords);
    queryable = queryable.Where(filters);
 
    var results = queryable.GetResults();
  }
}

private Expression<Func<SearchItem, bool>> GetKeywordFilters(string keywords)
{
  var predicate = PredicateBuilder.True<SearchItem>();
 
  var keywordCollection = new List<string>();
 
  if (keywords.StartsWith("\"") && keywords.EndsWith("\""))
  {
    keywordCollection.Add(keywords);
  }
  else
  {
    keywordCollection = keywords.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).ToList();
  }
 
  var filters = keywordCollection.Aggregate(predicate, (current, keyword) =>
    current.Or(i => (i.Body.Equals(keyword)
    || i.Title.Equals(keyword)
  );
 
 return filters;
}