Talvez deva tentar algumas variações de ortografia:
compare avian » comparing avian (Expandir a Pesquisa), complete avian (Expandir a Pesquisa), compare ais (Expandir a Pesquisa)
cost compared » test compared (Expandir a Pesquisa), ct compared (Expandir a Pesquisa), diet compared (Expandir a Pesquisa)
cast compare » cast compared (Expandir a Pesquisa), casts compared (Expandir a Pesquisa), east compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
avian ngoc » van ngoc (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
c cast » c case (Expandir a Pesquisa), c caat (Expandir a Pesquisa), c casa (Expandir a Pesquisa)
c cost » c costa (Expandir a Pesquisa), c costi (Expandir a Pesquisa)
a neta » a neto (Expandir a Pesquisa), a nectar (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: (((( c cast compare avian ngoc ) or ( c cost compared can ngoc ))) or ( _ nat computer a neta ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c cast compare avian ngoc ) OR ( c cost compared can ngoc ))) OR ( _ nat computer a neta )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( c cast compare avian ngoc ) or ( c cost compared can ngoc ))) or ( _ nat computer a neta ))*.