Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
medulla nerve » medullated nerve (Expandir a Pesquisa), medulla derived (Expandir a Pesquisa), medulla rvm (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
nerve cyst » nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), case goes (Expandir a Pesquisa)
j medulla » _ medulla (Expandir a Pesquisa), a medulla (Expandir a Pesquisa), da medulla (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa)
ai cent » i cent (Expandir a Pesquisa), ai centri (Expandir a Pesquisa), ai cheng (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( ai cent nerve cyst dis ) or ( i central nerve case does ))) or ( j medulla nerve cyst dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( ai cent nerve cyst dis ) OR ( i central nerve case does ))) OR ( j medulla nerve cyst dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( ai cent nerve cyst dis ) or ( i central nerve case does ))) or ( j medulla nerve cyst dis ))*.