Talvez deva tentar algumas variações de ortografia:
current nerve » recurrent nerve (Expandir a Pesquisa), current service (Expandir a Pesquisa), current survey (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
absent serve » absent nerve (Expandir a Pesquisa), absent gene (Expandir a Pesquisa), absent self (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
serve cyst » nerve cyst (Expandir a Pesquisa), nerve cystic (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), j curran (Expandir a Pesquisa), j currell (Expandir a Pesquisa)
_ absent » _ absence (Expandir a Pesquisa)
cyst d » cyst _ (Expandir a Pesquisa), cyst e (Expandir a Pesquisa), cyst c (Expandir a Pesquisa)
cyst a » cyst _ (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 current nerve system dis ) or ((( _ absent serve cyst d ) OR ( _ absent serve cyst a ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j current nerve system dis ) OR ((( _ absent serve cyst d ) OR ( _ absent serve cyst a )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j current nerve system dis ) or ((( _ absent serve cyst d ) OR ( _ absent serve cyst a ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j current nerve system dis ) or ((( _ absent serve cyst d ) OR ( _ absent serve cyst a ))))*.