Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
most complex » most complete (Expandir a Pesquisa), foot complex (Expandir a Pesquisa), cst complex (Expandir a Pesquisa)
thire carlos » torre carlos (Expandir a Pesquisa), tigre carlos (Expandir a Pesquisa), freire carlos (Expandir a Pesquisa)
carlos nadaf » carlos nadale (Expandir a Pesquisa), carlos adam (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
nacl thire » nacl thin (Expandir a Pesquisa)
concept a » concept _ (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john n (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
5 most » 50 most (Expandir a Pesquisa), 25 most (Expandir a Pesquisa), _ most (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 _ combs john new ) or ((( 5 most complex concept a ) or ( 7.5 nacl thire carlos nadaf ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs john new ) OR ((( 5 most complex concept a ) OR ( 7.5 nacl thire carlos nadaf )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs john new ) or ((( 5 most complex concept a ) or ( 7.5 nacl thire carlos nadaf ))))*.