Talvez deva tentar algumas variações de ortografia:
hoss derived » host derived (Expandir a Pesquisa), moss derived (Expandir a Pesquisa), poss derived (Expandir a Pesquisa)
derived cyst » derived cysts (Expandir a Pesquisa), derived cast (Expandir a Pesquisa), derived cat (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
i retinal » ii retinal (Expandir a Pesquisa), a retinal (Expandir a Pesquisa), 3 retinal (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
nerve cat » nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (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.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j hoss derived cyst due ) OR ( i retinal nerve can dcs ))) OR ( j benzo nerve cat did ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j hoss derived cyst due ) OR ( i retinal nerve can dcs ))) OR ( j benzo nerve cat did ))*.