Talvez deva tentar algumas variações de ortografia:
impaired mechano » impaired mental (Expandir a Pesquisa)
mechano block » mechanical block (Expandir a Pesquisa)
nancy cardia » nancy scardua (Expandir a Pesquisa), nancy carolina (Expandir a Pesquisa), nancy capin (Expandir a Pesquisa)
l impaired » al impaired (Expandir a Pesquisa), b impaired (Expandir a Pesquisa), lps impaired (Expandir a Pesquisa)
open clamp » mogen clamp (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)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
j open » bmj open (Expandir a Pesquisa), erj open (Expandir a Pesquisa), bdj open (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 l impaired mechano block ) or ((( j open clamp a now ) or ( j nancy cardia can ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l impaired mechano block ) OR ((( j open clamp a now ) OR ( j nancy cardia can ngoc )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l impaired mechano block ) or ((( j open clamp a now ) or ( j nancy cardia can ngoc ))))*.