The other problem is that every service out there will pretend to treat you with respect and it's only when things go wrong that you learn the truth, by that point it's too late.
So you need to 1) look beyond the price and 2) know which companies lie and which don't when it comes to their marketing (or have a previous experience with them), otherwise they all pretend to treat their customers with respect.
1. A box on a web page
2. Customers write words
3. Your software return a list of web pages that contain said words plus relevant ads.
Since sometime 2007 - 2009 and Google has dropped the requirement that results actually contains the word and it is extremely annoying.
I use DDG these days. They are just as bad, not better or worse but it is faster to add !g to a DDG search than to retype the query in DDG aftee first trying Google.
First other search engine to recreate the Google experience from before 2007 can charge me $10 a month and show ads on top of it and still get me as a happy customer.