Talvez deva tentar algumas variações de ortografia:
active systems » active systemic (Expandir a Pesquisa), adaptive systems (Expandir a Pesquisa), drive systems (Expandir a Pesquisa)
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
absent active » absent native (Expandir a Pesquisa)
systems sdcs » system sdcs (Expandir a Pesquisa), systems sdss (Expandir a Pesquisa), systems sedds (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
17 absent » _ absent (Expandir a Pesquisa), c1 absent (Expandir a Pesquisa), eo absent (Expandir a Pesquisa)
17 bent » 1 bent (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 cat due ) or ((( 17 bent nerve cat due ) or ( 17 absent active systems sdcs ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j central nerve cat due ) OR ((( 17 bent nerve cat due ) OR ( 17 absent active systems sdcs )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j central nerve cat due ) or ((( 17 bent nerve cat due ) or ( 17 absent active systems sdcs ))))*.