Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
bat reserve » fat reserves (Expandir a Pesquisa), bank reserve (Expandir a Pesquisa), both reserve (Expandir a Pesquisa)
nerve cyst » nerve cystic (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
beta nerve » mental nerve (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), j centeno (Expandir a Pesquisa), j cestero (Expandir a Pesquisa)
cyst dis » cyst d (Expandir a Pesquisa)
j beta » j beth (Expandir a Pesquisa)
j bat » j batt (Expandir a Pesquisa), j baty (Expandir a Pesquisa), _ bat (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 center nerve cyst due ) or ((( j beta nerve cyst dis ) or ( j bat reserve system dcs ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j center nerve cyst due ) OR ((( j beta nerve cyst dis ) OR ( j bat reserve system dcs )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j center nerve cyst due ) or ((( j beta nerve cyst dis ) or ( j bat reserve system dcs ))))*.