Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
camps johan » camps joan (Expandir a Pesquisa), camps juan (Expandir a Pesquisa), aps johan (Expandir a Pesquisa)
ifn complex » ion complex (Expandir a Pesquisa), iron complex (Expandir a Pesquisa), mrn complex (Expandir a Pesquisa)
nabr carlos » jair carlos (Expandir a Pesquisa), mar carlos (Expandir a Pesquisa), bauer carlos (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
johan new » johan n (Expandir a Pesquisa), johan n.a (Expandir a Pesquisa), johan ns (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
l camps » l campos (Expandir a Pesquisa), _ camps (Expandir a Pesquisa), e camps (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 camps johan new ) or ((( _ ifn complex concept _ ) or ( 0.9 nacl nabr carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l camps johan new ) OR ((( _ ifn complex concept _ ) OR ( 0.9 nacl nabr carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l camps johan new ) or ((( _ ifn complex concept _ ) or ( 0.9 nacl nabr carlos nara ))))*.