Talvez deva tentar algumas variações de ortografia:
complexes tran » complexes track (Expandir a Pesquisa), complexes thin (Expandir a Pesquisa), complexes total (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
combs union » como union (Expandir a Pesquisa)
knot carlos » knopf carlos (Expandir a Pesquisa), enout carlos (Expandir a Pesquisa), knecht carlos (Expandir a Pesquisa)
union net » union new (Expandir a Pesquisa), anion net (Expandir a Pesquisa), union nato (Expandir a Pesquisa)
nacl knot » nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa), nacl npt (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 5 methyl (Expandir a Pesquisa)
ngoc » ngo (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 union net ) or ((( 5 metal complexes tran ngoc ) or ( 3.5 nacl knot carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs union net ) OR ((( 5 metal complexes tran ngoc ) OR ( 3.5 nacl knot carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs union net ) or ((( 5 metal complexes tran ngoc ) or ( 3.5 nacl knot carlos nojek ))))*.