Talvez deva tentar algumas variações de ortografia:
complex chang » complex change (Expandir a Pesquisa), complex changes (Expandir a Pesquisa), complex charge (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
ran complex » rank complex (Expandir a Pesquisa), can complex (Expandir a Pesquisa), fan complex (Expandir a Pesquisa)
jason beng » jason cheng (Expandir a Pesquisa), jason bond (Expandir a Pesquisa), jason boyang (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
chang nam » kang nam (Expandir a Pesquisa)
k toombs » ms toombs (Expandir a Pesquisa), k toms (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
_ ran » _ rat (Expandir a Pesquisa), _ ras (Expandir a Pesquisa), _ raw (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 k toombs jason beng ) or ((( _ ran complex chang nam ) or ( 3.5 nacl knopf carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j k toombs jason beng ) OR ((( _ ran complex chang nam ) OR ( 3.5 nacl knopf carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j k toombs jason beng ) or ((( _ ran complex chang nam ) or ( 3.5 nacl knopf carlos nojek ))))*.