Talvez deva tentar algumas variações de ortografia:
preserved system » preserved systemic (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), preserved stem (Expandir a Pesquisa)
meal preserved » well preserved (Expandir a Pesquisa), cell preserved (Expandir a Pesquisa), retail preserved (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
benth nerve » bent nerve (Expandir a Pesquisa), both nerve (Expandir a Pesquisa), seventh nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
i benth » l benth (Expandir a Pesquisa), ex benth (Expandir a Pesquisa)
j meal » j meale (Expandir a Pesquisa), j mead (Expandir a Pesquisa), j meas (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: (((( a center nerve can dis ) OR ( i benth nerve _ dis ))) OR ( j meal preserved system dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a center nerve can dis ) or ( i benth nerve _ dis ))) or ( j meal preserved system dis ))*.