Talvez deva tentar algumas variações de ortografia:
benth drive » length drive (Expandir a Pesquisa), death drive (Expandir a Pesquisa), both drive (Expandir a Pesquisa)
renal nerve » retinal nerve (Expandir a Pesquisa), cranial nerve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
dull drive » dual drive (Expandir a Pesquisa), null driven (Expandir a Pesquisa), adults drive (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve age » nerve agent (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve area (Expandir a Pesquisa)
age disc » aged disc (Expandir a Pesquisa), large disc (Expandir a Pesquisa), age discus (Expandir a Pesquisa)
i benth » l benth (Expandir a Pesquisa), ex benth (Expandir a Pesquisa)
i renal » ii renal (Expandir a Pesquisa), i real (Expandir a Pesquisa)
j dull » j duell (Expandir a Pesquisa), _ dull (Expandir a Pesquisa), a dull (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 benth drive system due ) OR ( i renal nerve age disc ))) OR ( j dull drive system dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i benth drive system due ) or ( i renal nerve age disc ))) or ( j dull drive system dis ))*.