My Dad was a simple man. For him, life was about figuring out what is right and wrong and then doing the right thing, which he expected of others – and didn’t hesitate to tell them. (Needless to say, I did many things wrong.) But, in his Partial Differential Equations, he was quite intuitive and subtle, often thinking and speaking in metaphors, as Mathematicians do.
I think Dad would have been able to appreciate an intuitive yet common sense approach to searching on the web as superior over “Boolean Builder” tools.
I would advise against Boolean-building tools. They