Talvez deva tentar algumas variações de ortografia:
prevent nerve » prevent neural (Expandir a Pesquisa), prevent new (Expandir a Pesquisa), seventh nerve (Expandir a Pesquisa)
benign chen » benign chorea (Expandir a Pesquisa), benign clear (Expandir a Pesquisa), benign cases (Expandir a Pesquisa)
chen system » check system (Expandir a Pesquisa), open system (Expandir a Pesquisa), screen system (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
i prevent » i prevents (Expandir a Pesquisa), ii prevent (Expandir a Pesquisa), b prevent (Expandir a Pesquisa)
nerve out » nerve our (Expandir a Pesquisa), nerve oct (Expandir a Pesquisa), carve out (Expandir a Pesquisa)
do benign » so benign (Expandir a Pesquisa), do benin (Expandir a Pesquisa), do benim (Expandir a Pesquisa)
out due » gout due (Expandir a Pesquisa), out de (Expandir a Pesquisa), gut due (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 prevent nerve out due ) or ( do benign chen system dcs ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i prevent nerve out due ) OR ( do benign chen system dcs ))*.