Something that should be a sticky in and of itself... to do a better search, use google. Type what you want and then put site:spiuserforum.com after.
For Example
Buffer site:spiuserforum.com
I find that Googles search is tough to beat, and it works on any website. When I'm looking for paint color recommendations, I search the paint color that way.... Silver site:spiuserforum.com... and then read through all the threads related.
I posted an actual link to the buffer google search for example below.