First download your data from your Google Search History. Yeah, creepy. Then install jq. Wait for the email from Google that your archive is ready and download then unzip it. Open a terminal window in the Searches directory, and run this:
jq --raw-output '.event.query.query_text' *.json \ | sort | uniq -c | sort -rn | head -10
Here's what I see for the 75,687 queries I've typed into google since July 2005.
309 google analytics 130 hacker news 116 this is my jam 83 site:chroniclingamerica.loc.gov 68 jquery 54 bagit 48 twitter api 44 google translate 37 wikistream 37 opds
These are (mostly) things that I hadn't bothered to bookmark, but visited regularly. I suspect there is something more compelling and interesting that could be done with the data. A personal panopticon perhaps.
Oh, and I'd delete the archive from your Google Drive after you've downloaded it. If you ever grant other apps the ability to read from your drive they could read your search history. Actually maybe this whole exercise is fraught with peril. You should just ignore it.