Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
dental nerve » mental nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
benign base » benign case (Expandir a Pesquisa), benign cause (Expandir a Pesquisa), benign cases (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
a ventral » a ventura (Expandir a Pesquisa)
base cyst » based cyst (Expandir a Pesquisa), cause cyst (Expandir a Pesquisa), bone cyst (Expandir a Pesquisa)
j dental » j delta (Expandir a Pesquisa), j dent (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
2 benign » _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa), 1 benign (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
c dcs » c dos (Expandir a Pesquisa), _ dcs (Expandir a Pesquisa), c das (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": "(((( j dental nerve cyst dis ) OR ( a ventral nerve c dcs ))) OR ( 2 benign base cyst dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j dental nerve cyst dis ) OR ( a ventral nerve c dcs ))) OR ( 2 benign base cyst dis ))*.