Talvez deva tentar algumas variações de ortografia:
complex concepts » complex confers (Expandir a Pesquisa), complex controls (Expandir a Pesquisa), complex concentrates (Expandir a Pesquisa)
mrn complex » open complex (Expandir a Pesquisa)
pina carlos » pena carlos (Expandir a Pesquisa), pineda carlos (Expandir a Pesquisa), ospina carlos (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 a » concepts _ (Expandir a Pesquisa)
john neil » johns neil (Expandir a Pesquisa), cohn neil (Expandir a Pesquisa), johnson neil (Expandir a Pesquisa)
nacl pina » nacl na (Expandir a Pesquisa), nacl para (Expandir a Pesquisa)
l hobbs » j hobbs (Expandir a Pesquisa), _ hobbs (Expandir a Pesquisa), m hobbs (Expandir a Pesquisa)
_ mrn » _ mrna (Expandir a Pesquisa), _ mrnp (Expandir a Pesquisa), _ man (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 ((( _ mrn complex concepts a ) or ( 0.9 nacl pina carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l hobbs john neil ) OR ((( _ mrn complex concepts a ) OR ( 0.9 nacl pina carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l hobbs john neil ) or ((( _ mrn complex concepts a ) or ( 0.9 nacl pina carlos nava ))))*.