Talvez deva tentar algumas variações de ortografia:
combs johnson » thomas johnson (Expandir a Pesquisa), james johnson (Expandir a Pesquisa), boris johnson (Expandir a Pesquisa)
johnson neil » johnson n (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
iol complex » hixl complex (Expandir a Pesquisa), l complex (Expandir a Pesquisa), gl complex (Expandir a Pesquisa)
co2 carlos » 232 carlos (Expandir a Pesquisa), co2 carbon (Expandir a Pesquisa), co2 cenarios (Expandir a Pesquisa)
carlos noe » carlos noa (Expandir a Pesquisa), carlos nobre (Expandir a Pesquisa), carlos nojek (Expandir a Pesquisa)
tran ngon » trang ngon (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tran ngan (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
nacl co2 » nacl co (Expandir a Pesquisa)
5 iol » _ iol (Expandir a Pesquisa), 5 ion (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 _ combs johnson neil ) or ((( 5 iol complex tran ngon ) or ( 0.9 nacl co2 carlos noe ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs johnson neil ) OR ((( 5 iol complex tran ngon ) OR ( 0.9 nacl co2 carlos noe )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs johnson neil ) or ((( 5 iol complex tran ngon ) or ( 0.9 nacl co2 carlos noe ))))*.