Plugin request

I am trying to build a WP which relies on search for site navigation. I find the stock WP search function is Ok on short phrases, but longer phrases (encapsulated with “…”) fail to bring up any search results.

I’m hoping there is a reliable plugin I can use to replace the WP search function, which copes with longer phrases (up to maybe 20 characters).

I’ve heard that using Google to search a WP can be a good thing, but I have no idea which plugin to use. Can anyone give me a recommendation?

I need search results to appear on a separate page ~ not as a pop-up window.

Thanks