Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
deep survey » deer survey (Expandir a Pesquisa), sleep survey (Expandir a Pesquisa), soep survey (Expandir a Pesquisa)
survey cat » survey cats (Expandir a Pesquisa), survey can (Expandir a Pesquisa), survey calf (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)
1 ventral » a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa), da1 ventral (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
a deep » _ deep (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 deep survey cat dis ) OR ( i cent nerve cyst dis ))) OR ( 1 ventral nerve cyst dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a deep survey cat dis ) OR ( i cent nerve cyst dis ))) OR ( 1 ventral nerve cyst dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a deep survey cat dis ) OR ( i cent nerve cyst dis ))) OR ( 1 ventral nerve cyst dis ))*.