Talvez deva tentar algumas variações de ortografia:
center reserve » century reserve (Expandir a Pesquisa), western reserve (Expandir a Pesquisa), center research (Expandir a Pesquisa)
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mehta (Expandir a Pesquisa), j mena (Expandir a Pesquisa)
ai cent » i cent (Expandir a Pesquisa), ii cent (Expandir a Pesquisa), ai centri (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: (((( a center reserve system dis ) or ( ai cent nerve case dis ))) or ( j mental nerve case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a center reserve system dis ) OR ( ai cent nerve case dis ))) OR ( j mental nerve case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a center reserve system dis ) or ( ai cent nerve case dis ))) or ( j mental nerve case dis ))*.