Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl complex » nata complex (Expandir a Pesquisa), natb complex (Expandir a Pesquisa), natc complex (Expandir a Pesquisa)
complex hand » complex has (Expandir a Pesquisa), complex human (Expandir a Pesquisa), complex heart (Expandir a Pesquisa)
dal computer » dental computer (Expandir a Pesquisa), small computer (Expandir a Pesquisa), local computer (Expandir a Pesquisa)
hand never » had never (Expandir a Pesquisa), have never (Expandir a Pesquisa), than never (Expandir a Pesquisa)
based no2 » based non (Expandir a Pesquisa), based noc (Expandir a Pesquisa), based nod (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
j natl » j nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
_ dal » _ day (Expandir a Pesquisa), _ dar (Expandir a Pesquisa), _ das (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 natl complex hand never ) or ( j a clamp a newts ))) or ( _ dal computer based no2 ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl complex hand never ) OR ( j a clamp a newts ))) OR ( _ dal computer based no2 )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl complex hand never ) or ( j a clamp a newts ))) or ( _ dal computer based no2 ))*.