Module 4: Boolean Searches
My previous search would have been a bad way to demonstrate boolean searches, so I made up another one. We’re looking for meerkats and pygmy hedgehogs now. It’s a world of cute. 
Search to get most results: meerkat OR “pygmy hedgehog”
Search to get best results: meerkat OR “pygmy hedgehog” -oreilly
Search to get university results only: meerkat OR “pygmy hedgehog” -oreilly +university
