Talvez deva tentar algumas variações de ortografia:
patency compared » patients compared (Expandir a Pesquisa), pathway compared (Expandir a Pesquisa), patch compared (Expandir a Pesquisa)
compared case » compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa), comparing case (Expandir a Pesquisa)
nart compared » art compared (Expandir a Pesquisa), haart compared (Expandir a Pesquisa), heart compared (Expandir a Pesquisa)
a patency » _ patency (Expandir a Pesquisa), a potency (Expandir a Pesquisa), a patent (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
c nart » _ nart (Expandir a Pesquisa), c nast (Expandir a Pesquisa), c nar (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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 patency compared case now ) or ( _ nat compr can now ))) or ( c nart compared _ netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a patency compared case now ) OR ( _ nat compr can now ))) OR ( c nart compared _ netw ))*.