Talvez deva tentar algumas variações de ortografia:
recurrent serous » recurrent sepsis (Expandir a Pesquisa), recurrent seizures (Expandir a Pesquisa), recurrent squamous (Expandir a Pesquisa)
serous cross » serious cross (Expandir a Pesquisa), series cross (Expandir a Pesquisa), porous cross (Expandir a Pesquisa)
1 recurrent » _ recurrent (Expandir a Pesquisa), a recurrent (Expandir a Pesquisa), 2 recurrent (Expandir a Pesquisa)
cross d.s » cross d.t (Expandir a Pesquisa), cross d.j (Expandir a Pesquisa), cross dose (Expandir a Pesquisa)
ben nerve » bent nerve (Expandir a Pesquisa), when nerve (Expandir a Pesquisa), open nerve (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat bias (Expandir a Pesquisa)
j beta » j beth (Expandir a Pesquisa)
e ben » e bem (Expandir a Pesquisa), _ ben (Expandir a Pesquisa), m ben (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: (( 1 recurrent serous cross d.s ) or ((( e ben nerve cat dis ) or ( j beta nerve cat dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 1 recurrent serous cross d.s ) OR ((( e ben nerve cat dis ) OR ( j beta nerve cat dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 1 recurrent serous cross d.s ) or ((( e ben nerve cat dis ) or ( j beta nerve cat dis ))))*.