Matches that should be found, but aren't

[ryanfb]

Starting this issue just for collecting various types of matches that should be found, but currently aren't for whatever reason. May help with diagnosing problems or figuring out enhancements that might add these matches.

[ryanfb]

Kebētos Thēbaiou pinax, 1618:

• https://babel.hathitrust.org/cgi/pt?id=uc1.31822009493297 yields https://books.google.com/books?id=3ggsAQAAMAAJ
• https://archive.org/details/bub_gb_3FPa4Q4ga60C yields https://books.google.com/books?id=3FPa4Q4ga60C
• https://babel.hathitrust.org/cgi/pt?id=ucm.5325019257 yields nothing

Searching for any of these should yield all of the others.