Talvez deva tentar algumas variações de ortografia:
method complex » methods complex (Expandir a Pesquisa), method coupled (Expandir a Pesquisa), method complexity (Expandir a Pesquisa)
complex task » complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
carlos nunes » carlos nunez (Expandir a Pesquisa), santos nunes (Expandir a Pesquisa)
knot carlos » knopf carlos (Expandir a Pesquisa), enout carlos (Expandir a Pesquisa), knecht carlos (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
34.5 null » 4.2 null (Expandir a Pesquisa), icp34.5 null (Expandir a Pesquisa)
null knot » all knot (Expandir a Pesquisa)
john net » john new (Expandir a Pesquisa), john neetu (Expandir a Pesquisa), john asnet (Expandir a Pesquisa)
5 method » 5 methods (Expandir a Pesquisa), 05 method (Expandir a Pesquisa), 15 method (Expandir a Pesquisa)
task non » task new (Expandir a Pesquisa), task can (Expandir a Pesquisa), task cnn (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 net ) or ((( 5 method complex task non ) or ( 34.5 null knot carlos nunes ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs john net ) OR ((( 5 method complex task non ) OR ( 34.5 null knot carlos nunes )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs john net ) or ((( 5 method complex task non ) or ( 34.5 null knot carlos nunes ))))*.