Talvez deva tentar algumas variações de ortografia:
cent nervous » cental nervous (Expandir a Pesquisa), center nervous (Expandir a Pesquisa), get nervous (Expandir a Pesquisa)
benign beale » benign bile (Expandir a Pesquisa), benign base (Expandir a Pesquisa), benign breast (Expandir a Pesquisa)
dental nerve » mental nerve (Expandir a Pesquisa), ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
beale cat » female cat (Expandir a Pesquisa), beale kato (Expandir a Pesquisa), beale a (Expandir a Pesquisa)
i benign » _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa), i beni (Expandir a Pesquisa)
j dental » j dent (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cat did » coast did (Expandir a Pesquisa), what did (Expandir a Pesquisa), cat dead (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (((( i cent nervous system due ) or ( i benign beale cat did ))) or ( j dental nerve case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i cent nervous system due ) OR ( i benign beale cat did ))) OR ( j dental nerve case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i cent nervous system due ) or ( i benign beale cat did ))) or ( j dental nerve case dis ))*.