Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
zenu reserve » cell reserve (Expandir a Pesquisa), de reserve (Expandir a Pesquisa), debt reserve (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
benth nerve » bent nerve (Expandir a Pesquisa), both nerve (Expandir a Pesquisa), seventh nerve (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
case disc » cause disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case dose (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
i benth » l benth (Expandir a Pesquisa), ex benth (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: (((( _ zenu reserve system dcs ) or ( i benth nerve case disc ))) or ( j mental nerve case disc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ zenu reserve system dcs ) OR ( i benth nerve case disc ))) OR ( j mental nerve case disc )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ zenu reserve system dcs ) or ( i benth nerve case disc ))) or ( j mental nerve case disc ))*.