Talvez deva tentar algumas variações de ortografia:
metil complex » metal complex (Expandir a Pesquisa), metals complex (Expandir a Pesquisa), met complex (Expandir a Pesquisa)
complex task » complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
john reetz » john reetu (Expandir a Pesquisa), jochen reetz (Expandir a Pesquisa), john preeti (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
task ngoc » task non (Expandir a Pesquisa)
l coombs » l coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
3.5 null » 34.5 null (Expandir a Pesquisa), 3 null (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
5 metil » 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 l coombs john reetz ) or ((( 5 metil complex task ngoc ) or ( 3.5 null kno carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombs john reetz ) OR ((( 5 metil complex task ngoc ) OR ( 3.5 null kno carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombs john reetz ) or ((( 5 metil complex task ngoc ) or ( 3.5 null kno carlos nojek ))))*.