Well, not exactly, but I have two pairs of intact does, both mother-daughter. And my intact male house bunny and his spayed cuddlebun.
Spaying makes things somewhat easier I guess, but they are still females. Does have a much more ritualized way to settle controversities and pecking order: evil eye, humping, pawing, lounging, chasing, plucking tufts of fur - all part of sorting out their hierachy. Males, on the other hand, tend to get along until the mood snaps, and then it's full out fight, sometimes to the death. Females have a better chance to get along, but it really depends on the individual characters.
As I see it, and what I have to do with my female duos is that their space is structured in a way that they can get out of each others eye if necessery, and that there is kind of a raceway with no dead end. If one insists to make a point, the other needs a way to get away. That is with one of my duos, Black Fury (9)is my smallest, but most dominant rabbit, her daughter (7) quite submissive.
About all that bonding, "Tried a few times", well, I think that humans messing with their social skills can cause more problems than they solve. Putting them together, and seperating them - as long as there is no real fight that's something I would not do. It emboldens both, makes them think they made the other doe go away, and therefore she's the boss. Stick to the basic rules, and get through it.
Normally I keep my duos seperated, but there are accidents and both got out in the garden. There were tufts of fur when I got home from work, but then they just kept their distance. I'm pretty sure If I would keep them in this setting they would get along. But my whole setup isn't for a colony.
Note: I do not do bondings, so take my opinion with a pinch of salt.