Talvez deva tentar algumas variações de ortografia:
medical reserves » medical reserve (Expandir a Pesquisa), medical referees (Expandir a Pesquisa), medical researches (Expandir a Pesquisa)
reserves system » reserve system (Expandir a Pesquisa), reserved systems (Expandir a Pesquisa), preserves systemic (Expandir a Pesquisa)
cancer serve » cancer serves (Expandir a Pesquisa), cancer served (Expandir a Pesquisa), cancer nerve (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
j medical » j medina (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
i mental » vi mental (Expandir a Pesquisa), ii mental (Expandir a Pesquisa), i metal (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (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 cancer serve _ dis ) or ( i mental nerve c dos ))) or ( j medical reserves system de ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer serve _ dis ) OR ( i mental nerve c dos ))) OR ( j medical reserves system de )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer serve _ dis ) or ( i mental nerve c dos ))) or ( j medical reserves system de ))*.