Talvez deva tentar algumas variações de ortografia:
than computers » than computer (Expandir a Pesquisa), can computers (Expandir a Pesquisa), when computers (Expandir a Pesquisa)
complex cases » complex causes (Expandir a Pesquisa), complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
tail complex » oil complex (Expandir a Pesquisa), atrial complex (Expandir a Pesquisa), basal complex (Expandir a Pesquisa)
computers a » computers _ (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)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
cases now » cases new (Expandir a Pesquisa), cases non (Expandir a Pesquisa), case now (Expandir a Pesquisa)
j than » 6j than (Expandir a Pesquisa), j thad (Expandir a Pesquisa), j tham (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.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j than computers a new ) OR ( _ nat compr can newts ))) OR ( a tail complex cases now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j than computers a new ) or ( _ nat compr can newts ))) or ( a tail complex cases now ))*.