Talvez deva tentar algumas variações de ortografia:
crest derived » host derived (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
derived cat » derived cast (Expandir a Pesquisa), derived car (Expandir a Pesquisa), derived ca (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
beat nerve » bent nerve (Expandir a Pesquisa), treat nerve (Expandir a Pesquisa), heart nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), j centeno (Expandir a Pesquisa), j cestero (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa)
j crest » _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa), j crespo (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
j beat » j beaty (Expandir a Pesquisa), j bean (Expandir a Pesquisa), j bear (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 dis ) or ( j crest derived cat dis ))) or ( j beat nerve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j center nerve cyst dis ) OR ( j crest derived cat dis ))) OR ( j beat nerve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j center nerve cyst dis ) or ( j crest derived cat dis ))) or ( j beat nerve system dis ))*.