Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
coombes john » coombs john (Expandir a Pesquisa), combes john (Expandir a Pesquisa), coombes jason (Expandir a Pesquisa)
coal complex » coat complex (Expandir a Pesquisa), coa complex (Expandir a Pesquisa), clonal complex (Expandir a Pesquisa)
carlos juca » carlos juan (Expandir a Pesquisa), carlos julio (Expandir a Pesquisa)
kcl carlos » kuhl carlos (Expandir a Pesquisa), akel carlos (Expandir a Pesquisa), gil carlos (Expandir a Pesquisa)
e coombes » k coombes (Expandir a Pesquisa), m coombes (Expandir a Pesquisa), _ coombes (Expandir a Pesquisa)
concept a » concept _ (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john noel (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (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 coombes john new ) or ((( _ coal complex concept a ) or ( 0.9 nacl kcl carlos juca ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e coombes john new ) OR ((( _ coal complex concept a ) OR ( 0.9 nacl kcl carlos juca )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e coombes john new ) or ((( _ coal complex concept a ) or ( 0.9 nacl kcl carlos juca ))))*.