Another way to do it related to theduck's suggestion: after the search, select all and use the Mark feature to temporarily mark each book (CTRL-M by default). You might want to clear all marks before the search. Then, as you go through the books, unmark the ones you don't want to see (again using CTRL-M) or that you have finished dealing with. Doing a search for marked books (CTRL-SHIFT-M by default) will show you the books you still need to look at.
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