Talvez deva tentar algumas variações de ortografia:
absent negative » absent native (Expandir a Pesquisa), absent negativity (Expandir a Pesquisa), patient negative (Expandir a Pesquisa)
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
negative cyst » negative cystic (Expandir a Pesquisa), negative chest (Expandir a Pesquisa), negative case (Expandir a Pesquisa)
benton nerve » benign nerve (Expandir a Pesquisa), tendon nerve (Expandir a Pesquisa), bent nerve (Expandir a Pesquisa)
curve cause » curve caused (Expandir a Pesquisa), curse cause (Expandir a Pesquisa), curves caused (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
cause de » cause _ (Expandir a Pesquisa), cause a (Expandir a Pesquisa)
j benton » j benito (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
l absent » _ absent (Expandir a Pesquisa), 17 absent (Expandir a Pesquisa), c1 absent (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 current curve cause de ) or ((( j benton nerve cyst dis ) or ( l absent negative cyst dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i current curve cause de ) OR ((( j benton nerve cyst dis ) OR ( l absent negative cyst dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i current curve cause de ) or ((( j benton nerve cyst dis ) or ( l absent negative cyst dis ))))*.