OK. I think I found an issue on247 but I need someone else to verify.
When in browser and doing Google.com search for say "cheeseburger", tell it go.
Now add "fries" to your original search and hit go. Now when your search results come up, click on one of them.
Once the webpage loads, use the back arrow to go back to your google search.
On my phone instead of going back to the "cheeseburger fries" search, it will go back to the "cheeseburger" search.
This is really annoying. Let me know if you have this problem. Also I've rebooted and wiped cache a couple times to see if it cleared it up, but no success. :-(