Talvez deva tentar algumas variações de ortografia:
medical reserves » medical reserve (Expandir a Pesquisa), medical referees (Expandir a Pesquisa), medical researches (Expandir a Pesquisa)
reserves system » reserve system (Expandir a Pesquisa), reserved systems (Expandir a Pesquisa), preserves systemic (Expandir a Pesquisa)
sensors nerve » sensory nerve (Expandir a Pesquisa), sensory nerves (Expandir a Pesquisa), sensoris nervus (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
i sensors » 2 sensors (Expandir a Pesquisa), d sensors (Expandir a Pesquisa), bio sensors (Expandir a Pesquisa)
j medical » j medina (Expandir a Pesquisa)
case dcs » case disc (Expandir a Pesquisa), case does (Expandir a Pesquisa), case dose (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
a cent » a cena (Expandir a Pesquisa), a cenp (Expandir a Pesquisa), a center (Expandir a Pesquisa)
c dos » e dos (Expandir a Pesquisa), a dos (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 cent nerve case dcs ) OR ( i sensors nerve c dos ))) OR ( j medical reserves system dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a cent nerve case dcs ) or ( i sensors nerve c dos ))) or ( j medical reserves system dis ))*.