Talvez deva tentar algumas variações de ortografia:
benton steven » brunton steven (Expandir a Pesquisa), benton stephen (Expandir a Pesquisa), burton steven (Expandir a Pesquisa)
renal merve » renal nerve (Expandir a Pesquisa), senal merve (Expandir a Pesquisa), renal nerves (Expandir a Pesquisa)
treat sore » treat more (Expandir a Pesquisa), treat soft (Expandir a Pesquisa), treat severe (Expandir a Pesquisa)
steven cat » steven cala (Expandir a Pesquisa), steven chao (Expandir a Pesquisa), steven a (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
sore cat » soren can (Expandir a Pesquisa), sore a (Expandir a Pesquisa), sore ak (Expandir a Pesquisa)
j benton » j benito (Expandir a Pesquisa)
a treat » _ treat (Expandir a Pesquisa), a treated (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
i renal » i real (Expandir a Pesquisa)
can de » can do (Expandir a Pesquisa), can diet (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: (((( a treat sore cat dis ) OR ( i renal merve can de ))) OR ( j benton steven cat dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a treat sore cat dis ) OR ( i renal merve can de ))) OR ( j benton steven cat dis ))*".