Talvez deva tentar algumas variações de ortografia:
cooper jason » cooper john (Expandir a Pesquisa), cooper alan (Expandir a Pesquisa), cooper james (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
elder carlos » eder carlos (Expandir a Pesquisa), elder charles (Expandir a Pesquisa), ferrer carlos (Expandir a Pesquisa)
carlos coser » carlos costa (Expandir a Pesquisa), carlos correa (Expandir a Pesquisa), carlos cortes (Expandir a Pesquisa)
fei complex » feio complex (Expandir a Pesquisa), pei complex (Expandir a Pesquisa), fsi complex (Expandir a Pesquisa)
nacl elder » nacl under (Expandir a Pesquisa)
tran ngo » tran ngoc (Expandir a Pesquisa), tran ngon (Expandir a Pesquisa), trang ngo (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
jason a » jason _ (Expandir a Pesquisa)
c fei » c fein (Expandir a Pesquisa), c feio (Expandir a Pesquisa), _ fei (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 _ cooper jason a ) or ((( c fei complex tran ngo ) or ( 3.5 nacl elder carlos coser ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ cooper jason a ) OR ((( c fei complex tran ngo ) OR ( 3.5 nacl elder carlos coser )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ cooper jason a ) or ((( c fei complex tran ngo ) or ( 3.5 nacl elder carlos coser ))))*.