After checking all my settings, prompted by several posts, my contacts seem to be sync'ing OK and my search is finding all that it should again. I must have fixed my problem somewhere in settings, but then since my syncing is set to update every hour, I just did not wait long enough. I understand manual update doesn't work. So, I'm happy again and don't want to tinker any more. I'm not enough of an expert to help you. Don't forget to go to Google's help and search for IOS 9. They have several articles too. As a last resort you could delete your Google account(s) on the iPhone, then follow Google's latest recommendations for setting up Gmail, contacts, etc. on an iPhone. I know that's what I did years ago when I set this up.