Talvez deva tentar algumas variações de ortografia:
crest derived » host derived (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
benton nerve » benign nerve (Expandir a Pesquisa), tendon nerve (Expandir a Pesquisa), bent nerve (Expandir a Pesquisa)
derived car » derived ccr4 (Expandir a Pesquisa), derived c (Expandir a Pesquisa), derived cd4 (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
i ventral » ii ventral (Expandir a Pesquisa), _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa)
car disc » agar disc (Expandir a Pesquisa)
nerve cg » nerve c (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa), nerve ca (Expandir a Pesquisa)
j benton » j benito (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (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.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( _ crest derived car disc ) OR ( i ventral nerve cg dce ))) OR ( j benton nerve cyst dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ crest derived car disc ) OR ( i ventral nerve cg dce ))) OR ( j benton nerve cyst dis ))*.