Google Suggest typically shows suggestions firstly on the basis of most relevant and also secondly, on the basis of the majority of searched.
Just currently, when “why won’t” was typed in the address bar, “Why won’t my parakeet eat my diarrhea” appeared as a tip. How the hell did people begin searching for THAT ?!?! And even even more interestingly, it surpassed “Veterans Day” connected searches on Google Trends too