I'd be surprised if dictionaries didn't deal with this. But they may think that the basic meaning of 'succeed in looking for something' is enough.
Imagine a mediator and two parties A and Z. The mediator asks them (probably in separate rooms) what they want, and then compares A's list with Z's list. It may be difficult, and it will involve compromise (changing what you want in order to fit in with someone else's wishes - maybe in return for them changing one of their requirements).
This is what is 'found'; it's a metaphorical sort of 'find', because in a simple case when you find an object it already existed before you started looking. In the case of a compromise however it doesn't exist until someone looks and ultimately defines it.
(I don't have time to read the full context, but they probably used the passive - 'was found' - to avoid having to say that either party made concessions [maybe for political reasons]! )
Student or Learner