Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
century survey » center survey (Expandir a Pesquisa), centre survey (Expandir a Pesquisa), country survey (Expandir a Pesquisa)
renal reserve » adrenal reserve (Expandir a Pesquisa), legal reserve (Expandir a Pesquisa), adrenal reserves (Expandir a Pesquisa)
survey class » survey cross (Expandir a Pesquisa), survey cgss (Expandir a Pesquisa), survey chaps (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
class di » class dti (Expandir a Pesquisa), class d (Expandir a Pesquisa), class de (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (((( a century survey class di ) or ( i cent nerve cyst due ))) or ( a renal reserve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a century survey class di ) OR ( i cent nerve cyst due ))) OR ( a renal reserve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a century survey class di ) or ( i cent nerve cyst due ))) or ( a renal reserve system dis ))*.