Talvez deva tentar algumas variações de ortografia:
crest derived » host derived (Expandir a Pesquisa)
central merve » central nerve (Expandir a Pesquisa), central nerven (Expandir a Pesquisa), central nerves (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
derived fe » derived free (Expandir a Pesquisa), derived fuel (Expandir a Pesquisa), derived from (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
j ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), base does (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
fe dis » fe dias (Expandir a Pesquisa), fe dios (Expandir a Pesquisa), ve dis (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": "(( _ crest derived fe dis ) OR ((( j central merve can dis ) OR ( j ventral nerve case does ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ crest derived fe dis ) OR ((( j central merve can dis ) OR ( j ventral nerve case does ))))*.