Not to put too fine a point on it, but Steemit is absolute shit for discovery. There is a search engine, but it's almost complete crap. The only real way to go digging through someone's ideas is to go to their profile, click on their Blog tab, and start scrolling downward.
Luckily, mine isn't terribly deep yet, having only been here for a couple of months, but it's pretty ugly.
If you have some cool ideas, feel free to make a new post of your own and reference my original articles. There's no reason that we should hide some new and original material from you if it is of any length. It works out better for Steemit and for you.