Perhaps you should try some spelling variations:
ventral nerve » femoral nerve (Expand Search)
central nerve » central nervous (Expand Search), central neural (Expand Search), pectoral nerve (Expand Search)
nerve system » nervous system (Expand Search), drive system (Expand Search)
treat nerve » rat nerve (Expand Search), treat service (Expand Search), direct nerve (Expand Search)
j central » 1hfj central (Expand Search)
system de » system der (Expand Search), system delay (Expand Search)
case does » cases does (Expand Search), cause does (Expand Search), base does (Expand Search)
1 ventral » _ ventral (Expand Search), a ventral (Expand Search), 2 ventral (Expand Search)
nerve cat » nerve can (Expand Search), nerve ct (Expand Search), nerve cut (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 central nerve system de ) or ( i treat nerve case does ))) or ( 1 ventral nerve cat due ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( j central nerve system de ) OR ( i treat nerve case does ))) OR ( 1 ventral nerve cat due )).
• Adding a wildcard symbol may retrieve word variants: (((( j central nerve system de ) or ( i treat nerve case does ))) or ( 1 ventral nerve cat due ))*.