same problem → Searching C++ API UE documentation is not working properly - Documentation Feedback - Unreal Engine Forums
Title says it all. I can’t search any keyword in UE documentation.
it say ‘No results’…
how can i fix it?
Most likely it’s temporary server issue. Everything works fine on my end (trying from Norway) 
1 Like
Same problem here in Taiwan.
In fact, it never work since my first day in UE4.
1 Like