Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
dental reserve » central reserve (Expandir a Pesquisa), renal reserve (Expandir a Pesquisa), dental research (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (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 dental » j delta (Expandir a Pesquisa), j deal (Expandir a Pesquisa), j denham (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), i cena (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 nerve case dis ) or ( i cent nerve case dis ))) or ( j dental reserve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a center nerve case dis ) OR ( i cent nerve case dis ))) OR ( j dental reserve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a center nerve case dis ) or ( i cent nerve case dis ))) or ( j dental reserve system dis ))*.