Marcus, with most browsers now, you can type not only a web address in the address bar, but also a full search in the address bar, such as “Evernote productivity tools.” A search will be performed, using whatever you have set as your browser’s default search provider. In the old version of 1Password for iOS, there was no spacebar on the keyboard in the 1Password browser. That meant you could only do a one word search (such as searching for “Evernote”). I received a reply from 1Password to a Tweet last night, confirming that the update switched to a new keyboard, so this is in fact a new feature.
If that still doesn’t make sense, let me know.