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 tris » complex tric (Expandir a Pesquisa), complex trs (Expandir a Pesquisa), complex traits (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)
nacl knopf » nacl kno (Expandir a Pesquisa)
15 method » 135 method (Expandir a Pesquisa), 15 methods (Expandir a Pesquisa), 05 method (Expandir a Pesquisa)
tris ngoc » trinh ngoc (Expandir a Pesquisa), trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa)
l comps » m comps (Expandir a Pesquisa)
folic _ » colic _ (Expandir a Pesquisa), folico y (Expandir a Pesquisa), cholic _ (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 comps folic _ ) or ((( 15 method complex tris ngoc ) or ( 3 nacl knopf carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps folic _ ) OR ((( 15 method complex tris ngoc ) OR ( 3 nacl knopf carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps folic _ ) or ((( 15 method complex tris ngoc ) or ( 3 nacl knopf carlos nojek ))))*.