Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex tail » complex trait (Expandir a Pesquisa), complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa)
carlos rojek » carlos nojek (Expandir a Pesquisa), carlos rojas (Expandir a Pesquisa), carlos roger (Expandir a Pesquisa)
combes john » coombes john (Expandir a Pesquisa), combs john (Expandir a Pesquisa), forbes john (Expandir a Pesquisa)
jan carlos » juan carlos (Expandir a Pesquisa), jean carlos (Expandir a Pesquisa), jhan carlos (Expandir a Pesquisa)
tail ngoc » tai ngoc (Expandir a Pesquisa), tail non (Expandir a Pesquisa)
e combes » e coombes (Expandir a Pesquisa), e combs (Expandir a Pesquisa), w combes (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john n (Expandir a Pesquisa)
marc jan » marc a (Expandir a Pesquisa), marc j (Expandir a Pesquisa)
5 metal » 5 methyl (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 e combes john new ) or ((( 5 metal complex tail ngoc ) or ( 0.9 marc jan carlos rojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combes john new ) OR ((( 5 metal complex tail ngoc ) OR ( 0.9 marc jan carlos rojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combes john new ) or ((( 5 metal complex tail ngoc ) or ( 0.9 marc jan carlos rojek ))))*.