Talvez deva tentar algumas variações de ortografia:
research systems » research synthesis (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
men research » ten research (Expandir a Pesquisa), women research (Expandir a Pesquisa), open research (Expandir a Pesquisa)
systems dis » systems disk (Expandir a Pesquisa), systems dss (Expandir a Pesquisa), systems dds (Expandir a Pesquisa)
cenk nerve » cns nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa)
j ventral » a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa), 1 ventral (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
_ cenk » _ cenp (Expandir a Pesquisa)
j men » j mena (Expandir a Pesquisa), j meng (Expandir a Pesquisa), j mens (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 ventral nerve can dis ) or ( _ cenk nerve _ dos ))) or ( j men research systems dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j ventral nerve can dis ) OR ( _ cenk nerve _ dos ))) OR ( j men research systems dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j ventral nerve can dis ) or ( _ cenk nerve _ dos ))) or ( j men research systems dis ))*.