Talvez deva tentar algumas variações de ortografia:
research synthesis » starch synthesis (Expandir a Pesquisa)
neonatal research » dental research (Expandir a Pesquisa)
synthesis dis » synthesis dds (Expandir a Pesquisa), synthesis did (Expandir a Pesquisa), synthesis dos (Expandir a Pesquisa)
cancer nerve » cancer serves (Expandir a Pesquisa), cancer nurse (Expandir a Pesquisa), cancer nurses (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
a neonatal » _ neonatal (Expandir a Pesquisa), a neonate (Expandir a Pesquisa)
nerve can » merve can (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa)
j cancer » 1 cancer (Expandir a Pesquisa), j canter (Expandir a Pesquisa), j cantero (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)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (((( j cancer nerve can dis ) or ( i cent nerve c dis ))) or ( a neonatal research synthesis dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer nerve can dis ) OR ( i cent nerve c dis ))) OR ( a neonatal research synthesis dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer nerve can dis ) or ( i cent nerve c dis ))) or ( a neonatal research synthesis dis ))*.