Talvez deva tentar algumas variações de ortografia:
national reserve » functional reserve (Expandir a Pesquisa), national research (Expandir a Pesquisa), national resource (Expandir a Pesquisa)
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
cent merve » cengiz merve (Expandir a Pesquisa), celenk merve (Expandir a Pesquisa)
system des » system der (Expandir a Pesquisa), system de (Expandir a Pesquisa), system design (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
can dis » van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa), can dcs (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j cent merve can dis ) or ( i central nerve c dos ))) or ( j national reserve system des ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cent merve can dis ) OR ( i central nerve c dos ))) OR ( j national reserve system des )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cent merve can dis ) or ( i central nerve c dos ))) or ( j national reserve system des ))*.