This question already has an answer here:
To my knowledge there hasn't been an option in drupal 7 to create a single exposed filter in a view which searches multiple fields, while in previous versions there existed modules to do just that.
or operators is fine but then you get multiple fields in the form.
Global: Populate filters and you can have a single field but then the view never shows anything.
Is there any way or module that will make this work?
Edit: What I didn't notice was the field operators. For some reason the default operator for text fields in views is
=, while a proper search function needs
has word. I've been looking for the reason I couldn't get it to work for almost 6 months now. Wow. What a pain. /facepalm