Talvez deva tentar algumas variações de ortografia:
comparing case » comparing cancer (Expandir a Pesquisa), compelling case (Expandir a Pesquisa), comparing climate (Expandir a Pesquisa)
nat comparing » fat comparing (Expandir a Pesquisa), dast comparing (Expandir a Pesquisa), last comparing (Expandir a Pesquisa)
compra can » compra con (Expandir a Pesquisa), compra en (Expandir a Pesquisa), compra da (Expandir a Pesquisa)
la compra » la comarca (Expandir a Pesquisa), de compra (Expandir a Pesquisa), la comida (Expandir a Pesquisa)
case netw » case new (Expandir a Pesquisa), case note (Expandir a Pesquisa), case near (Expandir a Pesquisa)
nay compr » la compr (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
c nat » c nast (Expandir a Pesquisa), c nate (Expandir a Pesquisa), c nath (Expandir a Pesquisa)
_ nay » _ nayf (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: (((( _ la compra can new ) or ( c nat comparing case netw ))) or ( _ nay compr can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ la compra can new ) OR ( c nat comparing case netw ))) OR ( _ nay compr can new ))*.