Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
mental reserve » central reserve (Expandir a Pesquisa), renal reserve (Expandir a Pesquisa), metal reserves (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), rat ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
i ventral » ii ventral (Expandir a Pesquisa), _ ventral (Expandir a Pesquisa), 1 ventral (Expandir a Pesquisa)
j mental » j mehta (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mentz (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
c dis » c dias (Expandir a Pesquisa), c disc (Expandir a Pesquisa), c dos (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: (((( a ventral nerve cat dis ) or ( i ventral nerve c dis ))) or ( j mental reserve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a ventral nerve cat dis ) OR ( i ventral nerve c dis ))) OR ( j mental reserve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a ventral nerve cat dis ) or ( i ventral nerve c dis ))) or ( j mental reserve system dis ))*.