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)
letter nurse » letter nursing (Expandir a Pesquisa), letter name (Expandir a Pesquisa)
nurse cat » nurse can (Expandir a Pesquisa), nurse cadet (Expandir a Pesquisa), nurse can't (Expandir a Pesquisa)
i ventral » ii ventral (Expandir a Pesquisa), _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa)
system di » system de (Expandir a Pesquisa), system d (Expandir a Pesquisa), system dias (Expandir a Pesquisa)
j letter » bj letter (Expandir a Pesquisa), cj letter (Expandir a Pesquisa), j letters (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mehta (Expandir a Pesquisa), j mena (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (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 letter nurse cat dis ) or ( i ventral nerve _ disc ))) or ( j mental reserve system di ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j letter nurse cat dis ) OR ( i ventral nerve _ disc ))) OR ( j mental reserve system di )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j letter nurse cat dis ) or ( i ventral nerve _ disc ))) or ( j mental reserve system di ))*.