Per the grandparent comment: "Young people often use full sentences today because that is what works."
Searching "BPAP chemical", "BPAP chemistry", etc. seems to work fine.
> Google Search simply doesn't recognize the "(-)-" part of the search term.
AFAIK, Google search has always ignored parentheses and most punctuation symbols (other than ones that are special to it, like +require_term -exclude_term "...")
https://support.google.com/websearch/thread/71287971/does-go...
So I tried verbatim. It still didn't work.
Verbatim + quotation marks. Still nothing.
I guess New Google Search simply doesn't recognize the "(-)-" part of the search term. But this is characteristic of its recent performance. I can't even count the number of times Google disregarded part of my search term and gave me an inane result.