No worries. Do you use "operators"? People call it Google Operators. But it is applicable to all search engine. Eg. If you are looking for a certain word phrase in the url or website u type this on the search box
inurl: nostr

Output: will return all urls with thr phrase "nostr"

Or if you are looking for a pdf or ebook u use
pdf: against+intellectual+property+monopoly

The output will return all pdfs with that title. 
Have fun searching! 🤓