Search Box gadget will only present search results from this blog
You all might have received notification from blogger team regarding Search Box gadget. Below is the text notification received.
By 29 September 2016, the Search Box gadget on this blog will only present search results from this blog. Search results from pages linked in your posts, from the web or from the Blog List and Link List gadgets will no longer be presented.
|Linked From Here|
As shown in above image previously it was searching from current blog/website as well as from google. "Linked From Here" was showing relative search result from google.
Now as per the notification, google search is disabled. It will be in action from 29 September 2016.
Solution : As of now there is no such kind of gadgets available which allows blog + google search. But the thing is, it is still allowing blog post search from this Search Box Gadget. This change would not affect your existing blogger result.