One can do pretty accurate searching of BCN archives using Google advanced search strategies.
Use site:beadcollector.net as well as your keywords. If you wish to "not" out some
key words you can use a minus sign before the term you wish to omit. You can limit dates,, and more. And of course one can use the Google image search for keywords with the same site: command and specify color as well.
Lots of good options using Google.
Paula.
Here's one page of an example searching pumtek on BCN.