Talvez deva tentar algumas variações de ortografia:
complex concepts » complex confers (Expandir a Pesquisa), complex controls (Expandir a Pesquisa), complex concentrates (Expandir a Pesquisa)
stein carlos » steil carlos (Expandir a Pesquisa), steiner carlos (Expandir a Pesquisa), stein charles (Expandir a Pesquisa)
man complex » many complex (Expandir a Pesquisa), can complex (Expandir a Pesquisa), fan complex (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
hobbs john » hobbs jean (Expandir a Pesquisa)
concepts n » concepts en (Expandir a Pesquisa), concepts _ (Expandir a Pesquisa), concepts a (Expandir a Pesquisa)
nacl stein » nacl thin (Expandir a Pesquisa)
john neil » johns neil (Expandir a Pesquisa), cohn neil (Expandir a Pesquisa), johnson neil (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l hobbs » j hobbs (Expandir a Pesquisa), _ hobbs (Expandir a Pesquisa), m hobbs (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 hobbs john neil ) or ((( _ man complex concepts n ) or ( 3.5 nacl stein carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l hobbs john neil ) OR ((( _ man complex concepts n ) OR ( 3.5 nacl stein carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l hobbs john neil ) or ((( _ man complex concepts n ) or ( 3.5 nacl stein carlos nava ))))*.