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 bich » complex birth (Expandir a Pesquisa), complex bio (Expandir a Pesquisa), complex bis (Expandir a Pesquisa)
combs colon » combs colin (Expandir a Pesquisa), combat colon (Expandir a Pesquisa), comb color (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
kcl carlos » akel carlos (Expandir a Pesquisa), gil carlos (Expandir a Pesquisa), del carlos (Expandir a Pesquisa)
5 method » 5 methods (Expandir a Pesquisa), 5 methoxy (Expandir a Pesquisa), 5 methyl (Expandir a Pesquisa)
colon n » colon _ (Expandir a Pesquisa), colon a (Expandir a Pesquisa), colon 2 (Expandir a Pesquisa)
ngoc » ngo (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 colon n ) or ((( 5 method complex bich ngoc ) or ( 3.5 nacl kcl carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs colon n ) OR ((( 5 method complex bich ngoc ) OR ( 3.5 nacl kcl carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs colon n ) or ((( 5 method complex bich ngoc ) or ( 3.5 nacl kcl carlos nara ))))*.