Unfortunately all the "smart" search map parts - Amazon Search, EBay Search and Google Search - have been "retired" in MM 2017 (as confirmed in the MM 2017 release notes) and may no longer work even in the earlier versions which still have these map parts. The Google one certainly doesn't and actually stopped working some time ago because of changes to the Google API (I think you posted a comment in the discussion about that at the time).
I suspect that notwithstanding the response from Mindjet that they intended to rewrite the Google search map part for a future release, the company may be walking away from external search map parts entirely. There is however an alternative - the MAP add-in from Olympic Limited contains a Google search facility.
While you have to jump through a few hoops to set it up the first time it works quite well, in some respects better than the old Google search map part, though there is an upper limit on the number of searches. This is probably to conform with the requirements of the new Google API.