In order to improve the question asking page, it would be prevalent to include the tags in the search results.
Many users seem to type their question as their title. However, even with a clear title and a very limiting tag, the search results for the "Questions that may already have your answer" do not seem to come very close to being successful.
This more than likely leads to both tags being overly present in titles, and also duplicate questions being posted as the system has failed to identify existing content.
As a result, the system must be improved in order to remedy the situation.
yes, that is a hand drawn red circle angry face (re: swift, codeigniter, localization, Ruby, NSDate)
While this one example may seem localized to Stack Overflow, it is just a good example. This scenario would apply Exchange wide as every exchange strives to prevent duplicate and low quality content.
tl;dr; Include the chosen tags in the search criteria for "Questions that may already have your answer."