MSDN

As a C++ programmer when you want to use MSDN just for C++ and STL the filter "Visual C++" is not helping. You get all sort of matches but not the ones you need.

You need to filter just the right stuff. You need to go to Help->Edit Filters and create a new filter with these contents:
("DevLangVers" ="kbLangCPP") or ("TechnologyVers" ="kbSTL")

Now if you want to search for map, you'll get the right match.