@Chinsukolo I understand what you mean, unfortunately things are complicated.
First, we'd need to make sure it's not possible to get the whole book by searching for words like "the" that appear in practically every paragraph.
Second, none of us is a copyright lawyer, and the last thing we'd like is copyright trouble.
Third, that's not really a problem that Arcanum is meant to solve. We focus on interviews, signings etc. Searching through book content is not part of our goal. There are many things we still need to do in Arcanum, so even if the previous two points weren't there, book search would have extra low priority.
If you really want to do something like that, you can try contacting Dragonsteel and ask for their opinion/permission. Then I bet you'll find some willing coder to make it happen. But honesty, my gut tells me that they wouldn't be too enthusiastic about it. Too much risk of leaking the books and publishers might also have their objections.