Talvez deva tentar algumas variações de ortografia:
letters pulse » letter pulse (Expandir a Pesquisa), letters false (Expandir a Pesquisa), letters phase (Expandir a Pesquisa)
pulse system » base system (Expandir a Pesquisa), mouse system (Expandir a Pesquisa), case system (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
real nerve » renal nerve (Expandir a Pesquisa), rectal nerve (Expandir a Pesquisa), reveal nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
j letters » bj letters (Expandir a Pesquisa), _ letters (Expandir a Pesquisa), 5 letters (Expandir a Pesquisa)
nerve cg » nerve c (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa), nerve ca (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa)
i real » i read (Expandir a Pesquisa), i really (Expandir a Pesquisa)
cg dce » co dce (Expandir a Pesquisa), ng dce (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j letters pulse system dis ) OR ( i real nerve cg dce ))) OR ( j benzo nerve cyst dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j letters pulse system dis ) or ( i real nerve cg dce ))) or ( j benzo nerve cyst dis ))*.