Talvez deva tentar algumas variações de ortografia:
cooper jason » cooper john (Expandir a Pesquisa), cooper alan (Expandir a Pesquisa), cooper james (Expandir a Pesquisa)
set1 complex » pat1 complex (Expandir a Pesquisa), t1 complex (Expandir a Pesquisa), malt1 complex (Expandir a Pesquisa)
complex tres » complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex tris (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos nosek » carlos nojek (Expandir a Pesquisa), carlos noseda (Expandir a Pesquisa), carlos jose (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
tres ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), tra ngoc (Expandir a Pesquisa)
l cooper » _ cooper (Expandir a Pesquisa), j cooper (Expandir a Pesquisa), m cooper (Expandir a Pesquisa)
jason c » jason _ (Expandir a Pesquisa), jason a (Expandir a Pesquisa)
a set1 » _ set1 (Expandir a Pesquisa), a sete (Expandir a Pesquisa), a seth (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 l cooper jason c ) or ((( a set1 complex tres ngoc ) or ( 3.5 nacl knopf carlos nosek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l cooper jason c ) OR ((( a set1 complex tres ngoc ) OR ( 3.5 nacl knopf carlos nosek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l cooper jason c ) or ((( a set1 complex tres ngoc ) or ( 3.5 nacl knopf carlos nosek ))))*.