Talvez deva tentar algumas variações de ortografia:
signal complexity » social complexity (Expandir a Pesquisa)
complexity genes » complexity gene (Expandir a Pesquisa), complexity general (Expandir a Pesquisa), complexity beams (Expandir a Pesquisa)
nine carlos » nino carlos (Expandir a Pesquisa), nin carlos (Expandir a Pesquisa), gine carlos (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
carlos noe » carlos noel (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa), carlos nojek (Expandir a Pesquisa)
genes neo » genes new (Expandir a Pesquisa), genes nef (Expandir a Pesquisa), gene neo (Expandir a Pesquisa)
natl nine » all nine (Expandir a Pesquisa), data nine (Expandir a Pesquisa), eat nine (Expandir a Pesquisa)
5 signal » 5 signals (Expandir a Pesquisa), l5 signal (Expandir a Pesquisa), ac signal (Expandir a Pesquisa)
7.2 natl » 7.2 nacl (Expandir a Pesquisa)
e combs » sex combs (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 e combs john nash ) or ((( 5 signal complexity genes neo ) or ( 7.2 natl nine carlos noe ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john nash ) OR ((( 5 signal complexity genes neo ) OR ( 7.2 natl nine carlos noe )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john nash ) or ((( 5 signal complexity genes neo ) or ( 7.2 natl nine carlos noe ))))*.