Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
absent merve » absent nerve (Expandir a Pesquisa), absent gene (Expandir a Pesquisa), absent eye (Expandir a Pesquisa)
merve canal » nerve canal (Expandir a Pesquisa), merged canal (Expandir a Pesquisa), nerve canals (Expandir a Pesquisa)
beta serve » beta served (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), beta3 serves (Expandir a Pesquisa)
serve can » nerve can (Expandir a Pesquisa), merve can (Expandir a Pesquisa), service can (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve van » nerve vas (Expandir a Pesquisa), herve van (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
canal das » canal da (Expandir a Pesquisa), canal de (Expandir a Pesquisa), canal a (Expandir a Pesquisa)
_ absent » _ absence (Expandir a Pesquisa)
can due » scan due (Expandir a Pesquisa), man due (Expandir a Pesquisa), can de (Expandir a Pesquisa)
van de » van der (Expandir a Pesquisa), van den (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: (((( i beta serve can due ) or ( j central nerve van de ))) or ( _ absent merve canal das ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i beta serve can due ) OR ( j central nerve van de ))) OR ( _ absent merve canal das )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i beta serve can due ) or ( j central nerve van de ))) or ( _ absent merve canal das ))*.