Perhaps you should try some spelling variations:
center nerve » cancer nerve (Expand Search), center nurse (Expand Search), letter nerve (Expand Search)
mental nerve » ventral nerve (Expand Search), central nerve (Expand Search)
nerve system » nervous system (Expand Search), drive system (Expand Search)
system dias » system dan (Expand Search), system dcs (Expand Search), system dcus (Expand Search)
bent nerve » absent nerve (Expand Search), dental nerve (Expand Search), benign nerve (Expand Search)
j center » j centner (Expand Search), j centeno (Expand Search), j cestero (Expand Search)
case dis » case disc (Expand Search), case did (Expand Search), case di (Expand Search)
j mental » j mengual (Expand Search), j mena (Expand Search), j mehta (Expand Search)
j bent » j benet (Expand Search), j bento (Expand Search), j bena (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j center nerve case dis ) or ((( j mental nerve case dis ) or ( j bent nerve system dias ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j center nerve case dis ) OR ((( j mental nerve case dis ) OR ( j bent nerve system dias )))).
• Adding a wildcard symbol may retrieve word variants: (( j center nerve case dis ) or ((( j mental nerve case dis ) or ( j bent nerve system dias ))))*.