Many sites don't want to spend the engineering on building and maintaining a really-good search engine. Instead, they delegate searches to general engines like google, bing, duckduckgo, etc.
Paradoxically, it is fairly often the case that sometimes even if the site provides a search functionality, you get better control by using external search engines.
You should be aware that all major search engines:
1. allow you to limit your search to a specific site (or even url prefix such as company.com/support)
2. allow you to search for exact phrases or terms (by surrounding in double quotes), and (at least) a boolean AND of same.
3. allow you to specify keywords to be found only in the 'title' html tag of the page.
4. and many more such "Search Query Language" tricks, which are well-documented, and fairly standard across engines. This functionality has been there for decades.
As an example:
https://duckduckgo.com/?q=site:https://community.st.com/+intitle:"module"&ia=web
also, please excuse my momentarily hijacking the thread but, since you are prolific aid-givers on the forum, I'd like to let you know of another useful (if unrelated) trick. When linking to a pdf file, you can modify the url so that those who open the link in the browser will be taken directly to a specified page
For example:
https://www.st.com/resource/en/application_note/cd00167594-stm32-microcontroller-system-memory-boot-mode-stmicroelectronics.pdf#page=361
I encourage you to spread the word to other posters on the forum, when the opportunity arises.
(ping @waclawek.jan you may find this useful as well)
P.S.
Note that ST is not disciplined about URL preservation. For DS/RM/Appnotes, the file you get from a given url changes when they release a new revision, which means page numbers as well as numbered table/figure/section references can be broken as well.
If you really want a permalink that will last decades, you have to link to an archived version of the file (for example, via archive.org). Otherwise, it's best to also include sufficient textual context of what you're referring to, so future readers have a chance of locating the same information in a different revision of the file.
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