Talvez deva tentar algumas variações de ortografia:
prevent anergy » prevents anergy (Expandir a Pesquisa), prevent allergy (Expandir a Pesquisa), prevent army (Expandir a Pesquisa)
anergy system » energy system (Expandir a Pesquisa), energy systems (Expandir a Pesquisa), allergy system (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
j prevent » j prevents (Expandir a Pesquisa), _ prevent (Expandir a Pesquisa), 3 prevent (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (Expandir a Pesquisa)
a due » _ due (Expandir a Pesquisa), a dye (Expandir a Pesquisa), i due (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 prevent anergy cyst dis ) or ( j prevent anergy system dis ))) or ( j bent nerve a due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j prevent anergy cyst dis ) OR ( j prevent anergy system dis ))) OR ( j bent nerve a due )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j prevent anergy cyst dis ) or ( j prevent anergy system dis ))) or ( j bent nerve a due ))*.