Talvez deva tentar algumas variações de ortografia:
impaired ethanol » impair ethanol (Expandir a Pesquisa), improved ethanol (Expandir a Pesquisa), impaired mechano (Expandir a Pesquisa)
ethanol ngoc » ethanol block (Expandir a Pesquisa), ethanol co (Expandir a Pesquisa), ethanol n (Expandir a Pesquisa)
nancy cardia » nancy scardua (Expandir a Pesquisa), nancy carolina (Expandir a Pesquisa), nancy capin (Expandir a Pesquisa)
mogen clamp » open clamp (Expandir a Pesquisa)
l impaired » al impaired (Expandir a Pesquisa), b impaired (Expandir a Pesquisa), lps impaired (Expandir a Pesquisa)
cardia can » cardia case (Expandir a Pesquisa), cardia a (Expandir a Pesquisa), cardia n (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
j mogen » j moen (Expandir a Pesquisa), j modern (Expandir a Pesquisa), j mohren (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 l impaired ethanol ngoc ) or ((( j mogen clamp _ now ) or ( j nancy cardia can ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l impaired ethanol ngoc ) OR ((( j mogen clamp _ now ) OR ( j nancy cardia can ngoc )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l impaired ethanol ngoc ) or ((( j mogen clamp _ now ) or ( j nancy cardia can ngoc ))))*.