I actually emailed them (the have a specific address for suggestions) with this idea. It would be useful if there were topic specific search modes, coding would

I actually emailed them (the have a specific address for suggestions) with this idea. It would be useful if there were topic specific search modes, coding would be an example, that weighted certain domains over others (like stackoverflow and readthedocs). You could imagine this being useful for other topics as well. Of course I never got a response. I think it might be impossible due to their model. They aren't really a search engine, more like a search aggregator, they get results from Bing mostly if I remember correctly.