Talvez deva tentar algumas variações de ortografia:
nacl impaired » al impaired (Expandir a Pesquisa), renal impaired (Expandir a Pesquisa), focal impaired (Expandir a Pesquisa)
impaired toll » impaired th1 (Expandir a Pesquisa)
nayl clamp » tail clamp (Expandir a Pesquisa)
toll john » tolle john (Expandir a Pesquisa), roll john (Expandir a Pesquisa), moll john (Expandir a Pesquisa)
campo can » campo con (Expandir a Pesquisa), camp can (Expandir a Pesquisa), campo canar (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
y campo » a campo (Expandir a Pesquisa), y cambio (Expandir a Pesquisa)
j nayl » a nayl (Expandir a Pesquisa), j nay (Expandir a Pesquisa), j nail (Expandir a Pesquisa)
j now » _ now (Expandir a Pesquisa), a now (Expandir a Pesquisa), i now (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: (( _ nacl impaired toll john ) or ((( j nayl clamp j now ) or ( j y campo can ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ nacl impaired toll john ) OR ((( j nayl clamp j now ) OR ( j y campo can ngoc )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ nacl impaired toll john ) or ((( j nayl clamp j now ) or ( j y campo can ngoc ))))*.