Talvez deva tentar algumas variações de ortografia:
method complex » methods complex (Expandir a Pesquisa), method coupled (Expandir a Pesquisa), method complexity (Expandir a Pesquisa)
combs colic » combs colin (Expandir a Pesquisa), combe colin (Expandir a Pesquisa)
complex tri » complex tric (Expandir a Pesquisa), complex tris (Expandir a Pesquisa), complex trs (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
5 method » 5 methods (Expandir a Pesquisa), 05 method (Expandir a Pesquisa), 15 method (Expandir a Pesquisa)
tri ngoc » thi ngoc (Expandir a Pesquisa), tri ngo (Expandir a Pesquisa), tai ngoc (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
colic a » colic _ (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (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 combs colic a ) or ((( 5 method complex tri ngoc ) or ( 3 nacl kno carlos (none OR non) ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colic a ) OR ((( 5 method complex tri ngoc ) OR ( 3 nacl kno carlos (none OR non) )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l combs colic a ) or ((( 5 method complex tri ngoc ) or ( 3 nacl kno carlos (none OR non) ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colic a ) or ((( 5 method complex tri ngoc ) or ( 3 nacl kno carlos (none OR non) ))))*.