Talvez deva tentar algumas variações de ortografia:
dental nerves » dental nerve (Expandir a Pesquisa), renal nerves (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa)
cent nervous » cental nervous (Expandir a Pesquisa), center nervous (Expandir a Pesquisa), get nervous (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (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 cut (Expandir a Pesquisa)
nerves can » nerve can (Expandir a Pesquisa), nerves a (Expandir a Pesquisa), nerves c (Expandir a Pesquisa)
j dental » j dent (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (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 cent nervous system dis ) OR ( j cent nerve cyst due ))) OR ( j dental nerves can dcs ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cent nervous system dis ) OR ( j cent nerve cyst due ))) OR ( j dental nerves can dcs ))*.