Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
bent reserve » debt reserve (Expandir a Pesquisa), bat reserve (Expandir a Pesquisa), beach reserve (Expandir a Pesquisa)
system due » system de (Expandir a Pesquisa), system der (Expandir a Pesquisa)
held nerve » helps nerve (Expandir a Pesquisa), end nerve (Expandir a Pesquisa), cold nerve (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (Expandir a Pesquisa)
j held » j head (Expandir a Pesquisa), j herald (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 bent reserve system due ) or ( i central nerve case due ))) or ( j held nerve cat dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j bent reserve system due ) OR ( i central nerve case due ))) OR ( j held nerve cat dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j bent reserve system due ) or ( i central nerve case due ))) or ( j held nerve cat dis ))*.