Talvez deva tentar algumas variações de ortografia:
cranial serves » cranial nerves (Expandir a Pesquisa), cranial srs (Expandir a Pesquisa), cranial shapes (Expandir a Pesquisa)
cranial nerve » facial nerve (Expandir a Pesquisa)
serves based » series based (Expandir a Pesquisa), server based (Expandir a Pesquisa), nerves based (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
a cranial » _ cranial (Expandir a Pesquisa)
based dos » based dose (Expandir a Pesquisa), based dots (Expandir a Pesquisa), based ddos (Expandir a Pesquisa)
case goes » care goes (Expandir a Pesquisa), age goes (Expandir a Pesquisa), jose goes (Expandir a Pesquisa)
nerve cn » nerve can (Expandir a Pesquisa), nerve c (Expandir a Pesquisa), nerve co (Expandir a Pesquisa)
a cena » na cena (Expandir a Pesquisa)
cn dis » en dis (Expandir a Pesquisa), nn dis (Expandir a Pesquisa), cent dis (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a cena nerve cn dis ) OR ((( a cranial serves based dos ) OR ( a cranial nerve case goes ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a cena nerve cn dis ) or ((( a cranial serves based dos ) or ( a cranial nerve case goes ))))*.