Since most questions have already been answered, I use the search alot.
And because I am lazy, I always use the default search rather than the advanced search.
This, coupled with a lot of the posts in the codebank being there for a while,
means that articles from the codebank dont always get visibility in the search results.

Is it possible to have all results from the codebank at the top of the search results and the others below?

This would give the codebank more visibility and (hopefully) give the users the code they are looking for.