In an announcement by Google, you are now able to search using sequences of two or three special characters, which is something many coders do when looking for programming help in search.  You can now go to Google and search for any technical queries like 

[== vs ===] and [+=].

Google gave the example, if you’re searching for the meaning of [c++17], you will get results for the well-known programming language instead of c17.  Doing a search of C17 brings up a Boeing airplane.

Below is an example of a search result page for such technical queries:

Something else that Google did was to make it better for organization and product names that include punctuation.  For companies name She++ and Notepad++ as an example, Google will now return more accurate results.