Talvez deva tentar algumas variações de ortografia:
center nurse » center nurses (Expandir a Pesquisa), better nurse (Expandir a Pesquisa), letter nurse (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
renal nerve » retinal nerve (Expandir a Pesquisa), cranial nerve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system das » systems das (Expandir a Pesquisa), system dacs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
nurse can » nurses can (Expandir a Pesquisa), nurse care (Expandir a Pesquisa), nurse case (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), j centeno (Expandir a Pesquisa), j cestero (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat bias (Expandir a Pesquisa)
d renal » 3d renal (Expandir a Pesquisa), old renal (Expandir a Pesquisa), had renal (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j center nurse can dis ) or ( i cent nerve cat dis ))) or ( d renal nerve system das ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j center nurse can dis ) OR ( i cent nerve cat dis ))) OR ( d renal nerve system das )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j center nurse can dis ) or ( i cent nerve cat dis ))) or ( d renal nerve system das ))*.