Talvez deva tentar algumas variações de ortografia:
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
nerve caused » nerve case (Expandir a Pesquisa), nerve crush (Expandir a Pesquisa), nerve course (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
nerve cases » nerve case (Expandir a Pesquisa), nerve based (Expandir a Pesquisa), nerve changes (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
caused dos » caused dose (Expandir a Pesquisa), caused dips (Expandir a Pesquisa), caused dna (Expandir a Pesquisa)
cases dos » cases does (Expandir a Pesquisa), cases do (Expandir a Pesquisa), bases dos (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
a crest » _ crest (Expandir a Pesquisa), a creusot (Expandir a Pesquisa), a crespo (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 crest nerve cyst dis ) or ((( a benign nerve cases dos ) OR ( a benign nerve caused dos ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a crest nerve cyst dis ) OR ((( a benign nerve cases dos ) OR ( a benign nerve caused dos )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( a crest nerve cyst dis ) or ((( a benign nerve cases dos ) OR ( a benign nerve caused dos ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a crest nerve cyst dis ) or ((( a benign nerve cases dos ) OR ( a benign nerve caused dos ))))*.