From the site's FAQ (you might want to read all of it) . . .
Q. How can I just search one newspaper issue instead of the hundreds that are here? I'm getting way to many hits.
A. Solution - The newspaper titles are indexed. Just include the Newspapers Title in the search window along with what you are searching for (you must know how the Newspaper title was entered when I scanned it... look in the index to see the way it is displayed...).
Here is an example on how to search on one specific newspaper title( I will use Syracuse NY Post Standard in this example) for a range of dates (I will use 1904 through 1920) for a person named john Green and you not sure if he was using a middle initial........ First change to a Boolean search type then enter the following in the search box (ignore the quotes) “Syracuse NY Post Standard 1904~~1920 and john w/1 Green”
The words you have written is your instruction to the search engine to find only the newspapers that have the title Syracuse NY Post Standard and only the years 1904 (the ~~ [tilde symbol] means range of dates) through1920 and with the word john and within 1 character of the word Green ...
Boolean searching is very powerful but you must spend the time and learn how to use it. You will find a comprehensive guide for Boolean searches later in this section.