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 th1 » impaired toll (Expandir a Pesquisa), impaired _ (Expandir a Pesquisa), impaired a (Expandir a Pesquisa)
nayl clamp » tail clamp (Expandir a Pesquisa)
campo cao » campo caso (Expandir a Pesquisa), campo co (Expandir a Pesquisa), campo campo (Expandir a Pesquisa)
th1 ngoc » ho ngoc (Expandir a Pesquisa), chu ngoc (Expandir a Pesquisa), th1 non (Expandir a Pesquisa)
cao ngoc » bao ngoc (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa), ha ngoc (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
y campo » a campo (Expandir a Pesquisa), y cambio (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
j nayl » a nayl (Expandir a Pesquisa), j nay (Expandir a Pesquisa), j nail (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ 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: (( j nacl impaired th1 ngoc ) OR ((( j nayl clamp a now ) OR ( j y campo cao ngoc ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j nacl impaired th1 ngoc ) OR ((( j nayl clamp a now ) OR ( j y campo cao ngoc ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nacl impaired th1 ngoc ) OR ((( j nayl clamp a now ) OR ( j y campo cao ngoc ))))*.