Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
egress complex » repressor complex (Expandir a Pesquisa)
caso4 carlos » caso carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), casal carlos (Expandir a Pesquisa)
concept new » concepts new (Expandir a Pesquisa)
carlos nova » carlos novoa (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
nacl caso4 » nacl na2so4 (Expandir a Pesquisa)
5 egress » _ egress (Expandir a Pesquisa), 1 egress (Expandir a Pesquisa), _ regress (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (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 combs _ new ) or ((( 5 egress complex concept new ) or ( 3.5 nacl caso4 carlos nova ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs _ new ) OR ((( 5 egress complex concept new ) OR ( 3.5 nacl caso4 carlos nova )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs _ new ) or ((( 5 egress complex concept new ) or ( 3.5 nacl caso4 carlos nova ))))*.