Google Search – How to Find Symbol Meanings Without Knowing Their Names

You may want to try DuckDuckGo as an alternative. It doesn't filter and works pretty well, although I make no claims that it is as good as Google.

Using your browser's find-function is indeed the way to do this, as per the previous answer.

But be aware that the searched-on text is not necessarily included as text in all the items in your search results.

For example, if you have searched for "obscure phrase", and someone has a website that includes a picture for which the alt-text is "obscure phrase", then that website may be included in your search results, even though the text "obscure phrase" is not visible on the site to someone who is experiencing it through a regular web-browser and not using screen-reader software.

It's also possible that as Google's OCR of images gets better, search-results will contain images of the things you are searching for even if the specific search-text you use isn't in the image's file-name or alt-text.