Mar 14, 2014 at 9:59 PM
Edited Mar 14, 2014 at 10:36 PM
While I'm nowhere near as useful as Linvi,
I did try your code and it also returned nothing for me too.
But then I slightly changed by using my twitter account instead and it indeed returns the last 4 tweets with @kamehamehamehaa (my account) in them
var searchQuery = Search.GenerateSearchTweetParameter("@kamehamehamehaa");
searchQuery.MaximumNumberOfResults = 4;
var results = Search.SearchTweets(searchQuery);
I believe the query is searching for tweets with "@mteodoro85" or "@kamehamehamehaa" in them rather than searching by user @mteodoro85 (or @kamehamehamehaa)
If this does not make sense, log into that twitter account and post a tweet saying "@mteodoro85" and then try your code again it should return one value.
What I'm trying to say is it is returning null because there are no tweets containing the phrase '@mteodoro85'
You could try the method .GetMentionsTimeline() which should retrieve any tweet directed at your account and not just containing the words '@mteodoro85'