Rather that typing a long sentence, enter something like 'document separator'. This will return all the articles with the words 'document' or the word 'separator' in the title or keyword list.
To function properly there are 2 main urls that should be accessible to Umango. These are: Primary URLS For AI requests and license activation and syncing/checkins, the url below should be open and accessible to the Umango service: https://*.umango.com/* [open]