Talvez deva tentar algumas variações de ortografia:
metals complex » metal complex (Expandir a Pesquisa), metals complexes (Expandir a Pesquisa), metals coupled (Expandir a Pesquisa)
complex tail » complex trait (Expandir a Pesquisa), complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
knot carlos » knopf carlos (Expandir a Pesquisa), enout carlos (Expandir a Pesquisa), knecht carlos (Expandir a Pesquisa)
nacl knot » nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa), nacl npt (Expandir a Pesquisa)
5 metals » 5 metal (Expandir a Pesquisa), 5 metil (Expandir a Pesquisa), 5 meters (Expandir a Pesquisa)
tail non » tailed non (Expandir a Pesquisa), tail bond (Expandir a Pesquisa), tail can (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
l comas » l comps (Expandir a Pesquisa), l comeau (Expandir a Pesquisa)
comas c » tomas c (Expandir a Pesquisa), comas d (Expandir a Pesquisa), comas m (Expandir a Pesquisa)
c none » c nones (Expandir a Pesquisa), c noone (Expandir a Pesquisa), _ none (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 comas c none ) or ((( 5 metals complex tail non ) or ( 3.5 nacl knot carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comas c none ) OR ((( 5 metals complex tail non ) OR ( 3.5 nacl knot carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comas c none ) or ((( 5 metals complex tail non ) or ( 3.5 nacl knot carlos nojek ))))*.