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.
If you need to use Smart Seek to retrieve the last value of a certain structure in a block of text, you may have found this difficult. However, you can do it with 2 excellent pieces of regex syntax. These are the look ahead and the \Z (end of text) line terminator option.<
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