I have to agree with other posters who say the current W10 search is an absolute DOG - also the fact that I can hardly read the start menu (text size for me too small and I've found no way so far of being able to increase the size of the start menu itself - other items OK though) makes it doubly useless.
For some W7 users who never used W8 here's what it looks like.
(Note I'm on a Linux Host so this is shown on a W8.1 VM in Unity mode on a Linux desktop) - but on a Windows desktop the search panel is identical. The dropdown gives you files, settings or everywhere and it works decently. The whole point of a search is that it should be easy to enter your query and the GUI should be clean and uncluttered.