Talvez deva tentar algumas variações de ortografia:
complex concepts » complex confers (Expandir a Pesquisa), complex controls (Expandir a Pesquisa), complex concentrates (Expandir a Pesquisa)
giant complex » plant complex (Expandir a Pesquisa), joint complex (Expandir a Pesquisa), ligament complex (Expandir a Pesquisa)
pena carlos » luna carlos (Expandir a Pesquisa), medina carlos (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
concepts n » concepts en (Expandir a Pesquisa), concepts _ (Expandir a Pesquisa), concepts a (Expandir a Pesquisa)
nacl pena » nacl en (Expandir a Pesquisa), nacl na (Expandir a Pesquisa), nacl para (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 n ) or ((( _ giant complex concepts n ) or ( 0.9 nacl pena carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john n ) OR ((( _ giant complex concepts n ) OR ( 0.9 nacl pena carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john n ) or ((( _ giant complex concepts n ) or ( 0.9 nacl pena carlos nara ))))*.