Hi!
1. The default filter logic requires all terms to match (an “AND” type of logic). You can change that on the General Options -> Behavior panel: https://i.imgur.com/gbQtJTJ.png
The “OR” logic is much loose, it’s probably what you are looking for.
2. Filtering by date is not possible yet, unless you have a custom field set for each post with the year in it. In that case you can create a Custom Field filter for that custom field: http://goo.gl/D7RP9f
Best,Ernest Marcinko
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