Search Issue With Latest Upgrade 4.12.2 - 4.12.2.sp1

I am having huge issue with the Search. The search shows irrelevant products. I didnt have search problem before and now I do since i upgraded to the latest version on March 2021. Check out site when I search acetone, it doesn't show up Acetone, instead it shows a bunch of other products. Please help! Does anyone here have the same issue? Same problem when I search for Alcohol.

I have checked the search results page and does not see issues with the search. For example, check screenshots of first 2 items