Talvez deva tentar algumas variações de ortografia:
recurrent nervous » recurrent serous (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa), recurrent nevus (Expandir a Pesquisa)
i recurrent » ii recurrent (Expandir a Pesquisa), _ recurrent (Expandir a Pesquisa), a recurrent (Expandir a Pesquisa)
cent serve » stent serve (Expandir a Pesquisa), pet serve (Expandir a Pesquisa), client server (Expandir a Pesquisa)
best serve » best served (Expandir a Pesquisa), best steve (Expandir a Pesquisa), best observed (Expandir a Pesquisa)
serve case » nerve case (Expandir a Pesquisa), service case (Expandir a Pesquisa), reserve case (Expandir a Pesquisa)
serve can » nerve can (Expandir a Pesquisa), merve can (Expandir a Pesquisa), service can (Expandir a Pesquisa)
system do » system does (Expandir a Pesquisa), system der (Expandir a Pesquisa)
can diet » can direct (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (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.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i cent serve can diet ) OR ( i recurrent nervous system do ))) OR ( j best serve case dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i cent serve can diet ) or ( i recurrent nervous system do ))) or ( j best serve case dis ))*.