Talvez deva tentar algumas variações de ortografia:
benign serum » benign serous (Expandir a Pesquisa), benign struma (Expandir a Pesquisa), design serum (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
serum casein » serum case (Expandir a Pesquisa), serum caveolin (Expandir a Pesquisa), serum caffeine (Expandir a Pesquisa)
casein does » casein diet (Expandir a Pesquisa), case does (Expandir a Pesquisa), cases does (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
j absent » _ absent (Expandir a Pesquisa), 1 absent (Expandir a Pesquisa), l absent (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat bias (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j cent nerve cat due ) OR ((( j absent nerve cat dis ) OR ( j benign serum casein does ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cent nerve cat due ) or ((( j absent nerve cat dis ) or ( j benign serum casein does ))))*.