Talvez deva tentar algumas variações de ortografia:
crespo servan » crespo hervas (Expandir a Pesquisa), crespo sara (Expandir a Pesquisa), crespo sergio (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
benet nerve » bent nerve (Expandir a Pesquisa), detect nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
servan cat » servan kati (Expandir a Pesquisa), servan la (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
cat did » coast did (Expandir a Pesquisa), what did (Expandir a Pesquisa), cat dead (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: (((( j benet nerve cat dis ) OR ( a crespo servan cat did ))) OR ( j mental nerve cat dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j benet nerve cat dis ) OR ( a crespo servan cat did ))) OR ( j mental nerve cat dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j benet nerve cat dis ) OR ( a crespo servan cat did ))) OR ( j mental nerve cat dis ))*.