Talvez deva tentar algumas variações de ortografia:
nacl impaired » al impaired (Expandir a Pesquisa), renal impaired (Expandir a Pesquisa), focal impaired (Expandir a Pesquisa)
nair clamp » nair alap (Expandir a Pesquisa)
campo cam » campo com (Expandir a Pesquisa), kampo cam (Expandir a Pesquisa), campo campo (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
cam ngo » cam ngoc (Expandir a Pesquisa), cam ng (Expandir a Pesquisa), cam ngf (Expandir a Pesquisa)
a nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
j nair » a nair (Expandir a Pesquisa), c nair (Expandir a Pesquisa), j nail (Expandir a Pesquisa)
a ngo » ha ngo (Expandir a Pesquisa), a go (Expandir a Pesquisa), a nao (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
j do » j d (Expandir a Pesquisa), j o (Expandir a Pesquisa), j de (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 nacl impaired a ngo ) OR ((( j nair clamp a now ) OR ( j do campo cam ngo ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( a nacl impaired a ngo ) OR ((( j nair clamp a now ) OR ( j do campo cam ngo ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a nacl impaired a ngo ) OR ((( j nair clamp a now ) OR ( j do campo cam ngo ))))*.