Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
coat complex » cobalt complex (Expandir a Pesquisa), covalent complex (Expandir a Pesquisa), fact complex (Expandir a Pesquisa)
nabr carlos » najar carlos (Expandir a Pesquisa), mar carlos (Expandir a Pesquisa), nassar carlos (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
john agnew » john bagnell (Expandir a Pesquisa)
concept a » concept _ (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
_ coat » _ coast (Expandir a Pesquisa), _ coal (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 john agnew ) or ((( _ coat complex concept a ) or ( 0.9 nacl nabr carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs john agnew ) OR ((( _ coat complex concept a ) OR ( 0.9 nacl nabr carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs john agnew ) or ((( _ coat complex concept a ) or ( 0.9 nacl nabr carlos nava ))))*.