Talvez deva tentar algumas variações de ortografia:
survey systems » survey system (Expandir a Pesquisa), surgery systems (Expandir a Pesquisa), survey items (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current curve (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa)
systems di » systems do (Expandir a Pesquisa), systems de (Expandir a Pesquisa), systems d (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), ad current (Expandir a Pesquisa), j curran (Expandir a Pesquisa)
case goes » care goes (Expandir a Pesquisa), age goes (Expandir a Pesquisa), jose goes (Expandir a Pesquisa)
nerve can » merve can (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa)
can diet » can direct (Expandir a Pesquisa), than diet (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (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 case goes ) or ( 1 current survey systems di ))) or ( j bent nerve can diet ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j current nerve case goes ) OR ( 1 current survey systems di ))) OR ( j bent nerve can diet )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j current nerve case goes ) or ( 1 current survey systems di ))) or ( j bent nerve can diet ))*.