Am I missing something or is your new portal missing something pretty fundamental?
I enter a search string and am given results which contains all kinds of posts, from your old TechNet site ranging in age from 1863 (sarcasm) to the present, with no obvious way of me applying any filtering or even sorting to the results!?
It's like Microsoft forgets even the very basic stuff or just doesn't bother to put it in until enough people complain about your folly.
This is not quality it is design by minimum cost.