Let's face it, chem abstracts is (probably) like nothing you've ever searched before. There are no friendly boxes to enter information into. It uses weird abbreviations, is only available at odd times, and, at the end of your session, it implies you have spent a small (or sometimes not so small), fortune.
It's OK.
Your search, while not free, didn't cost as much as it says it did and there are a lot of good resources to help you through the search process.