Correct address format to get the most accurate results from google GeoCoding API

Question

Is there any standard format to supply the address string to Google GeoCoding API to get the most accurate results on map.

For Eg. following query not giving correct

Answer 1

I found that official country codes like "US", "DE", "FR" do not work well. Replacing them with the full country name gives much better results for me.

I did not find a source where that is stated.