Cannot search specific code in github web

Hi All,
I have a question of searching.
I want to search a function and its reference.
https://github.com/cms-sw/genproductions/blob/2b9d10ef1e018c3c15be19c5c567f1d7136c7a0f/bin/MadGraph5_aMCatNLO/PLUGIN/CMS_CLUSTER/init.py#L198
but I cannot find it in github search.
Can anyone tell me how to do it? or it’s the bug?

Hi @shu-xiao,

Glad to see you in Github Community Forum!

You can’t use the following wildcard characters as part of your search query: . , : ; / \ ` ’ " = * ! ? # $ & + ^ | ~ < > ( ) { } [ ] . The search will simply ignore these symbols. Please refer to the official doc for more details:
https://help.github.com/en/github/searching-for-information-on-github/searching-code#considerations-for-code-search

I tried and can get the search result as expected:

Thanks