The phrase "cold start die" is a poor search term for the internal search engine. It is basically looking for that exact wording some place in the post and unless somebody used broken english its most likely not going to find it. Also its not going to rank the results to determine the best options, its just going to give you the closest match it can find to your phrase. Googles algorithm is far more advanced than what you are going to get from a built in forum search with basic indexing. Just use the built in google search bar at the top of the forums for non descript queries, that's what it is there for.