The current search engine requires each word to be spelled correctly. When a word in the searching is partial or typed wrong. It won't pick up the article in my library even rest of the title is all correct. In everyday use, it is hard to make sure we won't have any typo. So allow degenerative search is very important and criticle for good user experience.
You guys mentioned the dimension.so searching engine. Not sure if this has been incorporated in this app or not.