Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
dental nurses » mental nurses (Expandir a Pesquisa), neonatal nurses (Expandir a Pesquisa), dental burs (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
dental nerve » mental nerve (Expandir a Pesquisa), ventral nerve (Expandir a Pesquisa), pudendal nerve (Expandir a Pesquisa)
nurses cyst » nurses case (Expandir a Pesquisa), nurses cease (Expandir a Pesquisa), nurses count (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
j dental » j delta (Expandir a Pesquisa), j dent (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
case di » case dti (Expandir a Pesquisa), case d (Expandir a Pesquisa), case de (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: (( j central nerve system dis ) or ((( j dental nerve case di ) or ( j dental nurses cyst due ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j central nerve system dis ) OR ((( j dental nerve case di ) OR ( j dental nurses cyst due )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j central nerve system dis ) or ((( j dental nerve case di ) or ( j dental nurses cyst due ))))*.