Talvez deva tentar algumas variações de ortografia:
crespo derived » crest derived (Expandir a Pesquisa), cre derived (Expandir a Pesquisa), tempo derived (Expandir a Pesquisa)
reply serum » replace serum (Expandir a Pesquisa), replete serum (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
serum bcl » serum bile (Expandir a Pesquisa), serum b (Expandir a Pesquisa), serum ace (Expandir a Pesquisa)
j crespo » a crespo (Expandir a Pesquisa), d crespo (Expandir a Pesquisa), _ crespo (Expandir a Pesquisa)
mast dis » mast id (Expandir a Pesquisa), mast d (Expandir a Pesquisa)
i reply » a reply (Expandir a Pesquisa), 5 reply (Expandir a Pesquisa), ct reply (Expandir a Pesquisa)
bcl dcs » bcl frcs (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (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 crespo derived mast dis ) OR ( i reply serum bcl dcs ))) OR ( j benzo nerve cyst due ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crespo derived mast dis ) OR ( i reply serum bcl dcs ))) OR ( j benzo nerve cyst due ))*.